[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot
Thanks for testing the '-20' kernel @kowshik.jois and thanks for the updates @arighi and @hariharan.ts. With that I'm closing this ticket (as Fix Released in 6.8.0-20). ** Changed in: linux (Ubuntu) Status: Confirmed => Fix Released ** Changed in: ubuntu-power-systems Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2059237 Title: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot Status in The Ubuntu-power-systems project: Fix Released Status in linux package in Ubuntu: Fix Released Bug description: == Comment:- Kowshik Jois B S == ---Problem Description--- Below trace messges are observed in dmesg after every reboot. [0.474287] integrity: Unable to open file: /etc/keys/x509_evm.der (-2) [0.475750] Freeing unused kernel image (initmem) memory: 8832K [0.507388] Checked W+X mappings: passed, no W+X pages found [0.507400] Run /init as init process [0.507403] with arguments: [0.507404] /init [0.507405] with environment: [0.507406] HOME=/ [0.507407] TERM=linux [0.507408] BOOT_IMAGE=/vmlinux-6.8.0-11-generic [0.511892] [ cut here ] [0.511904] UBSAN: array-index-out-of-bounds in /build/linux-MzA0lF/linux-6.8.0/arch/powerpc/kernel/module_64.c:353:17 [0.511909] index 0 is out of range for type 'char [*]' [0.511912] CPU: 13 PID: 1 Comm: systemd Not tainted 6.8.0-11-generic #11-Ubuntu [0.511917] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf06 of:IBM,FW1060.00 (NH1060_013) hv:phyp pSeries [0.511921] Call Trace: [0.511922] [c6683620] [c16b2f28] dump_stack_lvl+0x70/0xb4 (unreliable) [0.511931] [c6683650] [c0c7bc58] __ubsan_handle_out_of_bounds+0xc4/0x12c [0.511938] [c6683700] [c005d2a8] module_frob_arch_sections+0x4ec/0x8d0 [0.511943] [c66837e0] [c02b98cc] layout_and_allocate.isra.0+0x38/0x2a8 [0.511948] [c6683850] [c02b9dec] load_module+0x138/0xca0 [0.511953] [c6683990] [c02baca8] init_module_from_file+0xb4/0x14c [0.511958] [c6683a70] [c02baf70] sys_finit_module+0x230/0x48c [0.511963] [c6683b80] [c0033248] system_call_exception+0xe8/0x240 [0.511967] [c6683e50] [c000d15c] system_call_vectored_common+0x15c/0x2ec [0.511972] --- interrupt: 3000 at 0x7879b903b8a8 [0.511977] NIP: 7879b903b8a8 LR: CTR: [0.511980] REGS: c6683e80 TRAP: 3000 Not tainted (6.8.0-11-generic) [0.511984] MSR: 8000f033 CR: 48222428 XER: [0.511993] IRQMASK: 0 GPR00: 0161 7fffd683b580 7879b9166d00 0004 GPR04: 7879b8e0c160 0004 0010 0004 GPR08: 0001 GPR12: 7879b99d3a00 2000 0002 GPR16: 1b5c7d7453e0 7fffd683ba68 GPR20: 1b5c82154ae0 1b5c82142360 GPR24: 7879b957f7b0 1b5c82154ae0 1b5c82142160 GPR28: 7879b8e0c160 0002 1b5c82154ae0 1b5c82142380 [0.512029] NIP [7879b903b8a8] 0x7879b903b8a8 [0.512032] LR [] 0x0 [0.512034] --- interrupt: 3000 [0.512036] ---[ end trace ]--- [0.518326] systemd[1]: Inserted module 'autofs4' [0.521570] systemd[1]: systemd 255.2-3ubuntu2 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 -PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -BPF_FRAMEWORK -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified) [0.521583] systemd[1]: Detected virtualization powervm. [0.521589] systemd[1]: Detected architecture ppc64-le. [0.521593] systemd[1]: Running in initrd. [0.521743] systemd[1]: No hostname configured, using default hostname. [0.521789] systemd[1]: Hostname set to . [0.521847] systemd[1]: Initializing machine ID from random generator. [0.600736] systemd[1]: Queued start job for default target initrd.target. Machine Type = P10 LPAR Contact Information = Kowshik Jois B S kowshik.j...@in.ibm.com ---Steps to Reproduce--- 1. reboot the system 2. Once the system is booted back, look at dmesg ---uname output--- Linux ubuntu2404
[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot
If the issue is fixed without the extra patch, I think we can ignore it, it was probably a false positive from UBSAN. Let's keep an eye on it and if it shows up again in the future we can do a test with my additional patch. Thanks for update! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2059237 Title: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot Status in The Ubuntu-power-systems project: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: == Comment:- Kowshik Jois B S == ---Problem Description--- Below trace messges are observed in dmesg after every reboot. [0.474287] integrity: Unable to open file: /etc/keys/x509_evm.der (-2) [0.475750] Freeing unused kernel image (initmem) memory: 8832K [0.507388] Checked W+X mappings: passed, no W+X pages found [0.507400] Run /init as init process [0.507403] with arguments: [0.507404] /init [0.507405] with environment: [0.507406] HOME=/ [0.507407] TERM=linux [0.507408] BOOT_IMAGE=/vmlinux-6.8.0-11-generic [0.511892] [ cut here ] [0.511904] UBSAN: array-index-out-of-bounds in /build/linux-MzA0lF/linux-6.8.0/arch/powerpc/kernel/module_64.c:353:17 [0.511909] index 0 is out of range for type 'char [*]' [0.511912] CPU: 13 PID: 1 Comm: systemd Not tainted 6.8.0-11-generic #11-Ubuntu [0.511917] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf06 of:IBM,FW1060.00 (NH1060_013) hv:phyp pSeries [0.511921] Call Trace: [0.511922] [c6683620] [c16b2f28] dump_stack_lvl+0x70/0xb4 (unreliable) [0.511931] [c6683650] [c0c7bc58] __ubsan_handle_out_of_bounds+0xc4/0x12c [0.511938] [c6683700] [c005d2a8] module_frob_arch_sections+0x4ec/0x8d0 [0.511943] [c66837e0] [c02b98cc] layout_and_allocate.isra.0+0x38/0x2a8 [0.511948] [c6683850] [c02b9dec] load_module+0x138/0xca0 [0.511953] [c6683990] [c02baca8] init_module_from_file+0xb4/0x14c [0.511958] [c6683a70] [c02baf70] sys_finit_module+0x230/0x48c [0.511963] [c6683b80] [c0033248] system_call_exception+0xe8/0x240 [0.511967] [c6683e50] [c000d15c] system_call_vectored_common+0x15c/0x2ec [0.511972] --- interrupt: 3000 at 0x7879b903b8a8 [0.511977] NIP: 7879b903b8a8 LR: CTR: [0.511980] REGS: c6683e80 TRAP: 3000 Not tainted (6.8.0-11-generic) [0.511984] MSR: 8000f033 CR: 48222428 XER: [0.511993] IRQMASK: 0 GPR00: 0161 7fffd683b580 7879b9166d00 0004 GPR04: 7879b8e0c160 0004 0010 0004 GPR08: 0001 GPR12: 7879b99d3a00 2000 0002 GPR16: 1b5c7d7453e0 7fffd683ba68 GPR20: 1b5c82154ae0 1b5c82142360 GPR24: 7879b957f7b0 1b5c82154ae0 1b5c82142160 GPR28: 7879b8e0c160 0002 1b5c82154ae0 1b5c82142380 [0.512029] NIP [7879b903b8a8] 0x7879b903b8a8 [0.512032] LR [] 0x0 [0.512034] --- interrupt: 3000 [0.512036] ---[ end trace ]--- [0.518326] systemd[1]: Inserted module 'autofs4' [0.521570] systemd[1]: systemd 255.2-3ubuntu2 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 -PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -BPF_FRAMEWORK -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified) [0.521583] systemd[1]: Detected virtualization powervm. [0.521589] systemd[1]: Detected architecture ppc64-le. [0.521593] systemd[1]: Running in initrd. [0.521743] systemd[1]: No hostname configured, using default hostname. [0.521789] systemd[1]: Hostname set to . [0.521847] systemd[1]: Initializing machine ID from random generator. [0.600736] systemd[1]: Queued start job for default target initrd.target. Machine Type = P10 LPAR Contact Information = Kowshik Jois B S kowshik.j...@in.ibm.com ---Steps to Reproduce--- 1. reboot the system 2. Once the system is booted back, look at dmesg ---uname output--- Linux ubuntu2404 6.8.0-11-generic #11-Ubuntu SMP Wed Feb 14 00:33:03 UTC 2024 ppc64le ppc64le ppc64le
[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot
Hi Kowshik, sorry, just noticed the machine data line in the log: "IBM,9080-HEX POWER10 (raw) 0x800200 0xf06 of:IBM,FW1060.00 (NH1060_013) hv:phyp" Well, there is no proposed "ISO" - "-proposed" is just a special (pre-release) area in the archive for packages, incl. kernel. So I just thought about updating to the -20 kernel post install, rebooting and checking if it still happens. Btw. does the IBM Power kernel team has an opinion about Andrea's comment #4: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2059237/comments/4 (Since there is a good chance that this is also in the upstream kernels). -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2059237 Title: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot Status in The Ubuntu-power-systems project: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: == Comment:- Kowshik Jois B S == ---Problem Description--- Below trace messges are observed in dmesg after every reboot. [0.474287] integrity: Unable to open file: /etc/keys/x509_evm.der (-2) [0.475750] Freeing unused kernel image (initmem) memory: 8832K [0.507388] Checked W+X mappings: passed, no W+X pages found [0.507400] Run /init as init process [0.507403] with arguments: [0.507404] /init [0.507405] with environment: [0.507406] HOME=/ [0.507407] TERM=linux [0.507408] BOOT_IMAGE=/vmlinux-6.8.0-11-generic [0.511892] [ cut here ] [0.511904] UBSAN: array-index-out-of-bounds in /build/linux-MzA0lF/linux-6.8.0/arch/powerpc/kernel/module_64.c:353:17 [0.511909] index 0 is out of range for type 'char [*]' [0.511912] CPU: 13 PID: 1 Comm: systemd Not tainted 6.8.0-11-generic #11-Ubuntu [0.511917] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf06 of:IBM,FW1060.00 (NH1060_013) hv:phyp pSeries [0.511921] Call Trace: [0.511922] [c6683620] [c16b2f28] dump_stack_lvl+0x70/0xb4 (unreliable) [0.511931] [c6683650] [c0c7bc58] __ubsan_handle_out_of_bounds+0xc4/0x12c [0.511938] [c6683700] [c005d2a8] module_frob_arch_sections+0x4ec/0x8d0 [0.511943] [c66837e0] [c02b98cc] layout_and_allocate.isra.0+0x38/0x2a8 [0.511948] [c6683850] [c02b9dec] load_module+0x138/0xca0 [0.511953] [c6683990] [c02baca8] init_module_from_file+0xb4/0x14c [0.511958] [c6683a70] [c02baf70] sys_finit_module+0x230/0x48c [0.511963] [c6683b80] [c0033248] system_call_exception+0xe8/0x240 [0.511967] [c6683e50] [c000d15c] system_call_vectored_common+0x15c/0x2ec [0.511972] --- interrupt: 3000 at 0x7879b903b8a8 [0.511977] NIP: 7879b903b8a8 LR: CTR: [0.511980] REGS: c6683e80 TRAP: 3000 Not tainted (6.8.0-11-generic) [0.511984] MSR: 8000f033 CR: 48222428 XER: [0.511993] IRQMASK: 0 GPR00: 0161 7fffd683b580 7879b9166d00 0004 GPR04: 7879b8e0c160 0004 0010 0004 GPR08: 0001 GPR12: 7879b99d3a00 2000 0002 GPR16: 1b5c7d7453e0 7fffd683ba68 GPR20: 1b5c82154ae0 1b5c82142360 GPR24: 7879b957f7b0 1b5c82154ae0 1b5c82142160 GPR28: 7879b8e0c160 0002 1b5c82154ae0 1b5c82142380 [0.512029] NIP [7879b903b8a8] 0x7879b903b8a8 [0.512032] LR [] 0x0 [0.512034] --- interrupt: 3000 [0.512036] ---[ end trace ]--- [0.518326] systemd[1]: Inserted module 'autofs4' [0.521570] systemd[1]: systemd 255.2-3ubuntu2 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 -PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -BPF_FRAMEWORK -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified) [0.521583] systemd[1]: Detected virtualization powervm. [0.521589] systemd[1]: Detected architecture ppc64-le. [0.521593] systemd[1]: Running in initrd. [0.521743] systemd[1]: No hostname configured, using default hostname. [0.521789] systemd[1]: Hostname set to . [0.521847] systemd[1]: Initializing machine ID from random generator. [0.600736] systemd[1]: Queued start job
[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot
Looking at the code this issue seems to be introduced by `UBUNTU: SAUCE:
modpost: support arbitrary symbol length in modversion` and the UBSAN
warning tells us that accessing vers->name[0] could be an out-of-bounds
access.
The struct modversion_info contains a flexibile array (name), that is
correctly defined as the last member of the struct, and its size is
allocated dynamically at runtime, so I would expect that vars->name[0]
is always allocated, unless vars is not initialized properly or there's
an empty name.
So, my guess is that UBSAN isn't really happy about the flexible array
and this is just a false positive.
However, to be 100% sure that we are not actually doing and out-of-bound
access and prevent the warning, we could apply something like the
following on top of our SAUCE patch:
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 195714fc6e22..1f5960e25758 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -350,6 +350,8 @@ static void dedotify_versions(struct modversion_info *vers,
struct modversion_info *end = (void *)vers + size;
for (; vers < end && vers->next; vers = (void *)vers + vers->next) {
+ if (size <= offsetof(struct modversion_info, name))
+ continue;
if (vers->name[0] == '.') {
memmove(vers->name, vers->name+1, strlen(vers->name));
}
In this case even if (for any reason) vars->name[] is an empty string we can
prevent the out-of-bound access and make UBSAN happy.
Opinions?
--
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https://bugs.launchpad.net/bugs/2059237
Title:
[Ubuntu-24.04] "array-index-out-of-bounds" error is observed after
every reboot
Status in The Ubuntu-power-systems project:
Confirmed
Status in linux package in Ubuntu:
Confirmed
Bug description:
== Comment:- Kowshik Jois B S ==
---Problem Description---
Below trace messges are observed in dmesg after every reboot.
[0.474287] integrity: Unable to open file: /etc/keys/x509_evm.der (-2)
[0.475750] Freeing unused kernel image (initmem) memory: 8832K
[0.507388] Checked W+X mappings: passed, no W+X pages found
[0.507400] Run /init as init process
[0.507403] with arguments:
[0.507404] /init
[0.507405] with environment:
[0.507406] HOME=/
[0.507407] TERM=linux
[0.507408] BOOT_IMAGE=/vmlinux-6.8.0-11-generic
[0.511892] [ cut here ]
[0.511904] UBSAN: array-index-out-of-bounds in
/build/linux-MzA0lF/linux-6.8.0/arch/powerpc/kernel/module_64.c:353:17
[0.511909] index 0 is out of range for type 'char [*]'
[0.511912] CPU: 13 PID: 1 Comm: systemd Not tainted 6.8.0-11-generic
#11-Ubuntu
[0.511917] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf06
of:IBM,FW1060.00 (NH1060_013) hv:phyp pSeries
[0.511921] Call Trace:
[0.511922] [c6683620] [c16b2f28] dump_stack_lvl+0x70/0xb4
(unreliable)
[0.511931] [c6683650] [c0c7bc58]
__ubsan_handle_out_of_bounds+0xc4/0x12c
[0.511938] [c6683700] [c005d2a8]
module_frob_arch_sections+0x4ec/0x8d0
[0.511943] [c66837e0] [c02b98cc]
layout_and_allocate.isra.0+0x38/0x2a8
[0.511948] [c6683850] [c02b9dec] load_module+0x138/0xca0
[0.511953] [c6683990] [c02baca8]
init_module_from_file+0xb4/0x14c
[0.511958] [c6683a70] [c02baf70]
sys_finit_module+0x230/0x48c
[0.511963] [c6683b80] [c0033248]
system_call_exception+0xe8/0x240
[0.511967] [c6683e50] [c000d15c]
system_call_vectored_common+0x15c/0x2ec
[0.511972] --- interrupt: 3000 at 0x7879b903b8a8
[0.511977] NIP: 7879b903b8a8 LR: CTR:
[0.511980] REGS: c6683e80 TRAP: 3000 Not tainted
(6.8.0-11-generic)
[0.511984] MSR: 8000f033 CR:
48222428 XER:
[0.511993] IRQMASK: 0
GPR00: 0161 7fffd683b580 7879b9166d00
0004
GPR04: 7879b8e0c160 0004 0010
0004
GPR08: 0001
GPR12: 7879b99d3a00 2000
0002
GPR16: 1b5c7d7453e0
7fffd683ba68
GPR20: 1b5c82154ae0
1b5c82142360
GPR24: 7879b957f7b0 1b5c82154ae0
1b5c82142160
GPR28: 7879b8e0c160 0002 1b5c82154ae0
1b5c82142380
[0.512029] NIP
[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot
** Tags added: noble -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2059237 Title: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot Status in The Ubuntu-power-systems project: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: == Comment:- Kowshik Jois B S == ---Problem Description--- Below trace messges are observed in dmesg after every reboot. [0.474287] integrity: Unable to open file: /etc/keys/x509_evm.der (-2) [0.475750] Freeing unused kernel image (initmem) memory: 8832K [0.507388] Checked W+X mappings: passed, no W+X pages found [0.507400] Run /init as init process [0.507403] with arguments: [0.507404] /init [0.507405] with environment: [0.507406] HOME=/ [0.507407] TERM=linux [0.507408] BOOT_IMAGE=/vmlinux-6.8.0-11-generic [0.511892] [ cut here ] [0.511904] UBSAN: array-index-out-of-bounds in /build/linux-MzA0lF/linux-6.8.0/arch/powerpc/kernel/module_64.c:353:17 [0.511909] index 0 is out of range for type 'char [*]' [0.511912] CPU: 13 PID: 1 Comm: systemd Not tainted 6.8.0-11-generic #11-Ubuntu [0.511917] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf06 of:IBM,FW1060.00 (NH1060_013) hv:phyp pSeries [0.511921] Call Trace: [0.511922] [c6683620] [c16b2f28] dump_stack_lvl+0x70/0xb4 (unreliable) [0.511931] [c6683650] [c0c7bc58] __ubsan_handle_out_of_bounds+0xc4/0x12c [0.511938] [c6683700] [c005d2a8] module_frob_arch_sections+0x4ec/0x8d0 [0.511943] [c66837e0] [c02b98cc] layout_and_allocate.isra.0+0x38/0x2a8 [0.511948] [c6683850] [c02b9dec] load_module+0x138/0xca0 [0.511953] [c6683990] [c02baca8] init_module_from_file+0xb4/0x14c [0.511958] [c6683a70] [c02baf70] sys_finit_module+0x230/0x48c [0.511963] [c6683b80] [c0033248] system_call_exception+0xe8/0x240 [0.511967] [c6683e50] [c000d15c] system_call_vectored_common+0x15c/0x2ec [0.511972] --- interrupt: 3000 at 0x7879b903b8a8 [0.511977] NIP: 7879b903b8a8 LR: CTR: [0.511980] REGS: c6683e80 TRAP: 3000 Not tainted (6.8.0-11-generic) [0.511984] MSR: 8000f033 CR: 48222428 XER: [0.511993] IRQMASK: 0 GPR00: 0161 7fffd683b580 7879b9166d00 0004 GPR04: 7879b8e0c160 0004 0010 0004 GPR08: 0001 GPR12: 7879b99d3a00 2000 0002 GPR16: 1b5c7d7453e0 7fffd683ba68 GPR20: 1b5c82154ae0 1b5c82142360 GPR24: 7879b957f7b0 1b5c82154ae0 1b5c82142160 GPR28: 7879b8e0c160 0002 1b5c82154ae0 1b5c82142380 [0.512029] NIP [7879b903b8a8] 0x7879b903b8a8 [0.512032] LR [] 0x0 [0.512034] --- interrupt: 3000 [0.512036] ---[ end trace ]--- [0.518326] systemd[1]: Inserted module 'autofs4' [0.521570] systemd[1]: systemd 255.2-3ubuntu2 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 -PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -BPF_FRAMEWORK -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified) [0.521583] systemd[1]: Detected virtualization powervm. [0.521589] systemd[1]: Detected architecture ppc64-le. [0.521593] systemd[1]: Running in initrd. [0.521743] systemd[1]: No hostname configured, using default hostname. [0.521789] systemd[1]: Hostname set to . [0.521847] systemd[1]: Initializing machine ID from random generator. [0.600736] systemd[1]: Queued start job for default target initrd.target. Machine Type = P10 LPAR Contact Information = Kowshik Jois B S kowshik.j...@in.ibm.com ---Steps to Reproduce--- 1. reboot the system 2. Once the system is booted back, look at dmesg ---uname output--- Linux ubuntu2404 6.8.0-11-generic #11-Ubuntu SMP Wed Feb 14 00:33:03 UTC 2024 ppc64le ppc64le ppc64le GNU/Linux Additional Information: Same trace messages are seen on L2 guest as well. == Comment: - Kowshik Jois B S == Hello Likhitha, The ubuntu bug
[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot
And another quick question: on which systems does that happen? P9 (bare-metal or PowerVM) or P10 (PowerVM) or KVM on Power? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2059237 Title: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot Status in The Ubuntu-power-systems project: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: == Comment:- Kowshik Jois B S == ---Problem Description--- Below trace messges are observed in dmesg after every reboot. [0.474287] integrity: Unable to open file: /etc/keys/x509_evm.der (-2) [0.475750] Freeing unused kernel image (initmem) memory: 8832K [0.507388] Checked W+X mappings: passed, no W+X pages found [0.507400] Run /init as init process [0.507403] with arguments: [0.507404] /init [0.507405] with environment: [0.507406] HOME=/ [0.507407] TERM=linux [0.507408] BOOT_IMAGE=/vmlinux-6.8.0-11-generic [0.511892] [ cut here ] [0.511904] UBSAN: array-index-out-of-bounds in /build/linux-MzA0lF/linux-6.8.0/arch/powerpc/kernel/module_64.c:353:17 [0.511909] index 0 is out of range for type 'char [*]' [0.511912] CPU: 13 PID: 1 Comm: systemd Not tainted 6.8.0-11-generic #11-Ubuntu [0.511917] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf06 of:IBM,FW1060.00 (NH1060_013) hv:phyp pSeries [0.511921] Call Trace: [0.511922] [c6683620] [c16b2f28] dump_stack_lvl+0x70/0xb4 (unreliable) [0.511931] [c6683650] [c0c7bc58] __ubsan_handle_out_of_bounds+0xc4/0x12c [0.511938] [c6683700] [c005d2a8] module_frob_arch_sections+0x4ec/0x8d0 [0.511943] [c66837e0] [c02b98cc] layout_and_allocate.isra.0+0x38/0x2a8 [0.511948] [c6683850] [c02b9dec] load_module+0x138/0xca0 [0.511953] [c6683990] [c02baca8] init_module_from_file+0xb4/0x14c [0.511958] [c6683a70] [c02baf70] sys_finit_module+0x230/0x48c [0.511963] [c6683b80] [c0033248] system_call_exception+0xe8/0x240 [0.511967] [c6683e50] [c000d15c] system_call_vectored_common+0x15c/0x2ec [0.511972] --- interrupt: 3000 at 0x7879b903b8a8 [0.511977] NIP: 7879b903b8a8 LR: CTR: [0.511980] REGS: c6683e80 TRAP: 3000 Not tainted (6.8.0-11-generic) [0.511984] MSR: 8000f033 CR: 48222428 XER: [0.511993] IRQMASK: 0 GPR00: 0161 7fffd683b580 7879b9166d00 0004 GPR04: 7879b8e0c160 0004 0010 0004 GPR08: 0001 GPR12: 7879b99d3a00 2000 0002 GPR16: 1b5c7d7453e0 7fffd683ba68 GPR20: 1b5c82154ae0 1b5c82142360 GPR24: 7879b957f7b0 1b5c82154ae0 1b5c82142160 GPR28: 7879b8e0c160 0002 1b5c82154ae0 1b5c82142380 [0.512029] NIP [7879b903b8a8] 0x7879b903b8a8 [0.512032] LR [] 0x0 [0.512034] --- interrupt: 3000 [0.512036] ---[ end trace ]--- [0.518326] systemd[1]: Inserted module 'autofs4' [0.521570] systemd[1]: systemd 255.2-3ubuntu2 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 -PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -BPF_FRAMEWORK -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified) [0.521583] systemd[1]: Detected virtualization powervm. [0.521589] systemd[1]: Detected architecture ppc64-le. [0.521593] systemd[1]: Running in initrd. [0.521743] systemd[1]: No hostname configured, using default hostname. [0.521789] systemd[1]: Hostname set to . [0.521847] systemd[1]: Initializing machine ID from random generator. [0.600736] systemd[1]: Queued start job for default target initrd.target. Machine Type = P10 LPAR Contact Information = Kowshik Jois B S kowshik.j...@in.ibm.com ---Steps to Reproduce--- 1. reboot the system 2. Once the system is booted back, look at dmesg ---uname output--- Linux ubuntu2404 6.8.0-11-generic #11-Ubuntu SMP Wed Feb 14 00:33:03 UTC 2024 ppc64le ppc64le ppc64le GNU/Linux Additional Information: Same trace messages are seen on L2 guest as well. == Comment: - Kowshik
[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot
Hello Kowshik Jois, thanks for raising our attention on this. I apologize, but once a Launchpad ticket got closed (for example as Fix Released), like with LP#2055126, it is no longer actively monitored anymore (by our team), hence we missed your additional comments. (I just found your comments, after I explicitly opened it again ...) In addition I personally didn't recognized LP#2052767, since it wasn't opened via the Bugzilla-to-Launchpad bridge, hence wasn't marked as affecting the 'The Ubuntu-power-systems project', which is what we actively monitor. But anyway, each problem needs it's own Launchpad entry, so it was correct to open this one here. (I'll just mark LP#2052767 as a duplicate of this one, LP#2059237). ___ So it looks like this happens with a kernel 6.6 (info taken from LP#2052767: linux-6.6.0 - is this an upstream kernel build that you did by yourself? Since - afair - we never had a kernel 6.6 in noble/24.04, just a 6.7.) and with kernel 6.8.0-11 (from the bug description here) - that is the one we currently have in the daily IOSs. There is already an updated kernel available from our "-proposed" pocket. $ rmadison --arch=ppc64el --suite=noble,noble-proposed linux-generic linux-generic | 6.8.0-11.11+1 | noble | ppc64el linux-generic | 6.8.0-20.20+1 | noble-proposed | ppc64el <== Would you mind installing and trying the 6.8.0-20 from proposed, to see if that (very latest) kernel still shows this 'UBSAN: array-index-out-of-bounds' issue? ** Changed in: ubuntu-power-systems Status: New => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2059237 Title: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot Status in The Ubuntu-power-systems project: Confirmed Status in linux package in Ubuntu: Confirmed Bug description: == Comment:- Kowshik Jois B S == ---Problem Description--- Below trace messges are observed in dmesg after every reboot. [0.474287] integrity: Unable to open file: /etc/keys/x509_evm.der (-2) [0.475750] Freeing unused kernel image (initmem) memory: 8832K [0.507388] Checked W+X mappings: passed, no W+X pages found [0.507400] Run /init as init process [0.507403] with arguments: [0.507404] /init [0.507405] with environment: [0.507406] HOME=/ [0.507407] TERM=linux [0.507408] BOOT_IMAGE=/vmlinux-6.8.0-11-generic [0.511892] [ cut here ] [0.511904] UBSAN: array-index-out-of-bounds in /build/linux-MzA0lF/linux-6.8.0/arch/powerpc/kernel/module_64.c:353:17 [0.511909] index 0 is out of range for type 'char [*]' [0.511912] CPU: 13 PID: 1 Comm: systemd Not tainted 6.8.0-11-generic #11-Ubuntu [0.511917] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf06 of:IBM,FW1060.00 (NH1060_013) hv:phyp pSeries [0.511921] Call Trace: [0.511922] [c6683620] [c16b2f28] dump_stack_lvl+0x70/0xb4 (unreliable) [0.511931] [c6683650] [c0c7bc58] __ubsan_handle_out_of_bounds+0xc4/0x12c [0.511938] [c6683700] [c005d2a8] module_frob_arch_sections+0x4ec/0x8d0 [0.511943] [c66837e0] [c02b98cc] layout_and_allocate.isra.0+0x38/0x2a8 [0.511948] [c6683850] [c02b9dec] load_module+0x138/0xca0 [0.511953] [c6683990] [c02baca8] init_module_from_file+0xb4/0x14c [0.511958] [c6683a70] [c02baf70] sys_finit_module+0x230/0x48c [0.511963] [c6683b80] [c0033248] system_call_exception+0xe8/0x240 [0.511967] [c6683e50] [c000d15c] system_call_vectored_common+0x15c/0x2ec [0.511972] --- interrupt: 3000 at 0x7879b903b8a8 [0.511977] NIP: 7879b903b8a8 LR: CTR: [0.511980] REGS: c6683e80 TRAP: 3000 Not tainted (6.8.0-11-generic) [0.511984] MSR: 8000f033 CR: 48222428 XER: [0.511993] IRQMASK: 0 GPR00: 0161 7fffd683b580 7879b9166d00 0004 GPR04: 7879b8e0c160 0004 0010 0004 GPR08: 0001 GPR12: 7879b99d3a00 2000 0002 GPR16: 1b5c7d7453e0 7fffd683ba68 GPR20: 1b5c82154ae0 1b5c82142360 GPR24: 7879b957f7b0 1b5c82154ae0 1b5c82142160 GPR28: 7879b8e0c160 0002 1b5c82154ae0 1b5c82142380 [0.512029] NIP [7879b903b8a8] 0x7879b903b8a8 [0.512032] LR
[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: linux (Ubuntu) Status: New => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2059237 Title: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot Status in The Ubuntu-power-systems project: New Status in linux package in Ubuntu: Confirmed Bug description: == Comment:- Kowshik Jois B S == ---Problem Description--- Below trace messges are observed in dmesg after every reboot. [0.474287] integrity: Unable to open file: /etc/keys/x509_evm.der (-2) [0.475750] Freeing unused kernel image (initmem) memory: 8832K [0.507388] Checked W+X mappings: passed, no W+X pages found [0.507400] Run /init as init process [0.507403] with arguments: [0.507404] /init [0.507405] with environment: [0.507406] HOME=/ [0.507407] TERM=linux [0.507408] BOOT_IMAGE=/vmlinux-6.8.0-11-generic [0.511892] [ cut here ] [0.511904] UBSAN: array-index-out-of-bounds in /build/linux-MzA0lF/linux-6.8.0/arch/powerpc/kernel/module_64.c:353:17 [0.511909] index 0 is out of range for type 'char [*]' [0.511912] CPU: 13 PID: 1 Comm: systemd Not tainted 6.8.0-11-generic #11-Ubuntu [0.511917] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf06 of:IBM,FW1060.00 (NH1060_013) hv:phyp pSeries [0.511921] Call Trace: [0.511922] [c6683620] [c16b2f28] dump_stack_lvl+0x70/0xb4 (unreliable) [0.511931] [c6683650] [c0c7bc58] __ubsan_handle_out_of_bounds+0xc4/0x12c [0.511938] [c6683700] [c005d2a8] module_frob_arch_sections+0x4ec/0x8d0 [0.511943] [c66837e0] [c02b98cc] layout_and_allocate.isra.0+0x38/0x2a8 [0.511948] [c6683850] [c02b9dec] load_module+0x138/0xca0 [0.511953] [c6683990] [c02baca8] init_module_from_file+0xb4/0x14c [0.511958] [c6683a70] [c02baf70] sys_finit_module+0x230/0x48c [0.511963] [c6683b80] [c0033248] system_call_exception+0xe8/0x240 [0.511967] [c6683e50] [c000d15c] system_call_vectored_common+0x15c/0x2ec [0.511972] --- interrupt: 3000 at 0x7879b903b8a8 [0.511977] NIP: 7879b903b8a8 LR: CTR: [0.511980] REGS: c6683e80 TRAP: 3000 Not tainted (6.8.0-11-generic) [0.511984] MSR: 8000f033 CR: 48222428 XER: [0.511993] IRQMASK: 0 GPR00: 0161 7fffd683b580 7879b9166d00 0004 GPR04: 7879b8e0c160 0004 0010 0004 GPR08: 0001 GPR12: 7879b99d3a00 2000 0002 GPR16: 1b5c7d7453e0 7fffd683ba68 GPR20: 1b5c82154ae0 1b5c82142360 GPR24: 7879b957f7b0 1b5c82154ae0 1b5c82142160 GPR28: 7879b8e0c160 0002 1b5c82154ae0 1b5c82142380 [0.512029] NIP [7879b903b8a8] 0x7879b903b8a8 [0.512032] LR [] 0x0 [0.512034] --- interrupt: 3000 [0.512036] ---[ end trace ]--- [0.518326] systemd[1]: Inserted module 'autofs4' [0.521570] systemd[1]: systemd 255.2-3ubuntu2 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 -PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -BPF_FRAMEWORK -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified) [0.521583] systemd[1]: Detected virtualization powervm. [0.521589] systemd[1]: Detected architecture ppc64-le. [0.521593] systemd[1]: Running in initrd. [0.521743] systemd[1]: No hostname configured, using default hostname. [0.521789] systemd[1]: Hostname set to . [0.521847] systemd[1]: Initializing machine ID from random generator. [0.600736] systemd[1]: Queued start job for default target initrd.target. Machine Type = P10 LPAR Contact Information = Kowshik Jois B S kowshik.j...@in.ibm.com ---Steps to Reproduce--- 1. reboot the system 2. Once the system is booted back, look at dmesg ---uname output--- Linux ubuntu2404 6.8.0-11-generic #11-Ubuntu SMP Wed Feb 14 00:33:03 UTC 2024 ppc64le ppc64le ppc64le GNU/Linux Additional Information: Same trace messages are seen on L2 guest as well. == Comment: -
[Kernel-packages] [Bug 2059237] Re: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot
** Also affects: ubuntu-power-systems Importance: Undecided Status: New ** Changed in: ubuntu-power-systems Assignee: (unassigned) => Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) ** Changed in: linux (Ubuntu) Assignee: Ubuntu on IBM Power Systems Bug Triage (ubuntu-power-triage) => (unassigned) ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: ubuntu-power-systems Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/2059237 Title: [Ubuntu-24.04] "array-index-out-of-bounds" error is observed after every reboot Status in The Ubuntu-power-systems project: New Status in linux package in Ubuntu: New Bug description: == Comment:- Kowshik Jois B S == ---Problem Description--- Below trace messges are observed in dmesg after every reboot. [0.474287] integrity: Unable to open file: /etc/keys/x509_evm.der (-2) [0.475750] Freeing unused kernel image (initmem) memory: 8832K [0.507388] Checked W+X mappings: passed, no W+X pages found [0.507400] Run /init as init process [0.507403] with arguments: [0.507404] /init [0.507405] with environment: [0.507406] HOME=/ [0.507407] TERM=linux [0.507408] BOOT_IMAGE=/vmlinux-6.8.0-11-generic [0.511892] [ cut here ] [0.511904] UBSAN: array-index-out-of-bounds in /build/linux-MzA0lF/linux-6.8.0/arch/powerpc/kernel/module_64.c:353:17 [0.511909] index 0 is out of range for type 'char [*]' [0.511912] CPU: 13 PID: 1 Comm: systemd Not tainted 6.8.0-11-generic #11-Ubuntu [0.511917] Hardware name: IBM,9080-HEX POWER10 (raw) 0x800200 0xf06 of:IBM,FW1060.00 (NH1060_013) hv:phyp pSeries [0.511921] Call Trace: [0.511922] [c6683620] [c16b2f28] dump_stack_lvl+0x70/0xb4 (unreliable) [0.511931] [c6683650] [c0c7bc58] __ubsan_handle_out_of_bounds+0xc4/0x12c [0.511938] [c6683700] [c005d2a8] module_frob_arch_sections+0x4ec/0x8d0 [0.511943] [c66837e0] [c02b98cc] layout_and_allocate.isra.0+0x38/0x2a8 [0.511948] [c6683850] [c02b9dec] load_module+0x138/0xca0 [0.511953] [c6683990] [c02baca8] init_module_from_file+0xb4/0x14c [0.511958] [c6683a70] [c02baf70] sys_finit_module+0x230/0x48c [0.511963] [c6683b80] [c0033248] system_call_exception+0xe8/0x240 [0.511967] [c6683e50] [c000d15c] system_call_vectored_common+0x15c/0x2ec [0.511972] --- interrupt: 3000 at 0x7879b903b8a8 [0.511977] NIP: 7879b903b8a8 LR: CTR: [0.511980] REGS: c6683e80 TRAP: 3000 Not tainted (6.8.0-11-generic) [0.511984] MSR: 8000f033 CR: 48222428 XER: [0.511993] IRQMASK: 0 GPR00: 0161 7fffd683b580 7879b9166d00 0004 GPR04: 7879b8e0c160 0004 0010 0004 GPR08: 0001 GPR12: 7879b99d3a00 2000 0002 GPR16: 1b5c7d7453e0 7fffd683ba68 GPR20: 1b5c82154ae0 1b5c82142360 GPR24: 7879b957f7b0 1b5c82154ae0 1b5c82142160 GPR28: 7879b8e0c160 0002 1b5c82154ae0 1b5c82142380 [0.512029] NIP [7879b903b8a8] 0x7879b903b8a8 [0.512032] LR [] 0x0 [0.512034] --- interrupt: 3000 [0.512036] ---[ end trace ]--- [0.518326] systemd[1]: Inserted module 'autofs4' [0.521570] systemd[1]: systemd 255.2-3ubuntu2 running in system mode (+PAM +AUDIT +SELINUX +APPARMOR +IMA +SMACK +SECCOMP +GCRYPT -GNUTLS +OPENSSL +ACL +BLKID +CURL +ELFUTILS +FIDO2 +IDN2 -IDN +IPTC +KMOD +LIBCRYPTSETUP +LIBFDISK +PCRE2 -PWQUALITY +P11KIT +QRENCODE +TPM2 +BZIP2 +LZ4 +XZ +ZLIB +ZSTD -BPF_FRAMEWORK -XKBCOMMON +UTMP +SYSVINIT default-hierarchy=unified) [0.521583] systemd[1]: Detected virtualization powervm. [0.521589] systemd[1]: Detected architecture ppc64-le. [0.521593] systemd[1]: Running in initrd. [0.521743] systemd[1]: No hostname configured, using default hostname. [0.521789] systemd[1]: Hostname set to . [0.521847] systemd[1]: Initializing machine ID from random generator. [0.600736] systemd[1]: Queued start job for default target initrd.target. Machine Type = P10 LPAR Contact Information = Kowshik Jois B S kowshik.j...@in.ibm.com ---Steps to
