[Kernel-packages] [Bug 1905807] Re: insecure W+X mapping
insecure W+X mapping is fixed in v5.13 series and in impish. the changes to fix those will not be backported to hirsute, hence marking this bug as fix released. The kernel panics that is shown in the pastebin is unrelated to the insecure W+X mapping. ** Changed in: linux-riscv (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-riscv in Ubuntu. https://bugs.launchpad.net/bugs/1905807 Title: insecure W+X mapping Status in linux-riscv package in Ubuntu: Fix Released Bug description: [ 19.051518] Freeing unused kernel memory: 308K [ 19.062326] [ cut here ] [ 19.066219] riscv/mm: Found insecure W+X mapping at address (ptrval)/0xffdff800 [ 19.074930] WARNING: CPU: 0 PID: 1 at arch/riscv/mm/ptdump.c:200 note_page+0x24c/0x252 [ 19.082806] Modules linked in: [ 19.085825] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.8.0-10-generic #12+21.04.1-Ubuntu [ 19.094007] epc: ffe000208f18 ra : ffe000208f18 sp : ffe1f5b9fb30 [ 19.101104] gp : ffe001728ee0 tp : ffe1f5bedc00 t0 : ffe00173edf8 [ 19.108330] t1 : ffe00173ed90 t2 : 0001feca5000 s0 : ffe1f5b9fb80 [ 19.115536] s1 : ffe1f5b9fe10 a0 : 0053 a1 : 00020020 [ 19.122743] a2 : ffe1f5b9f870 a3 : a4 : ffe0016200f8 [ 19.129949] a5 : ffe0016200f8 a6 : 00c1 a7 : ffe0006f27fe [ 19.137156] s2 : ffdff8001000 s3 : s4 : 0004 [ 19.144376] s5 : s6 : s7 : ffe1f5b9fd20 [ 19.151570] s8 : ffdff8001000 s9 : ffe00172a148 s10: ffdff8002000 [ 19.158775] s11: ffe000c16e20 t3 : 0003ce50 t4 : 0003ce50 [ 19.165980] t5 : t6 : ffe001739462 [ 19.171255] status: 00020120 badaddr: cause: 0003 [ 19.179177] ---[ end trace 72fa85d58b123e2f ]--- [ 19.184544] Checked W+X mappings: failed, 513 W+X pages found [ 19.189561] Run /init as init process Not sure what that means. This is on [0.00] Linux version 5.8.0-10-generic (buildd@riscv64-qemu-lcy01-087) (gcc (Ubuntu 10.2.0-18ubuntu1) 10.2.0, GNU ld (GNU Binutils for Ubuntu) 2.35.1) #12+21.04.1-Ubuntu SMP Fri Nov 20 16:26:05 UTC 2020 (Ubuntu 5.8.0-10.12+21.04.1-generic 5.8.17) will try to get full logs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-riscv/+bug/1905807/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
[Kernel-packages] [Bug 1905807] Re: insecure W+X mapping
I'm seeing something very similar to this with current focal images running on unmatched (5.8.0-29) It looks like the image on july 24 worked, but ever since the july 25, 2021 image, it fails to boot https://pastebin.canonical.com/p/c9czkm9x74/ -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-riscv in Ubuntu. https://bugs.launchpad.net/bugs/1905807 Title: insecure W+X mapping Status in linux-riscv package in Ubuntu: New Bug description: [ 19.051518] Freeing unused kernel memory: 308K [ 19.062326] [ cut here ] [ 19.066219] riscv/mm: Found insecure W+X mapping at address (ptrval)/0xffdff800 [ 19.074930] WARNING: CPU: 0 PID: 1 at arch/riscv/mm/ptdump.c:200 note_page+0x24c/0x252 [ 19.082806] Modules linked in: [ 19.085825] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.8.0-10-generic #12+21.04.1-Ubuntu [ 19.094007] epc: ffe000208f18 ra : ffe000208f18 sp : ffe1f5b9fb30 [ 19.101104] gp : ffe001728ee0 tp : ffe1f5bedc00 t0 : ffe00173edf8 [ 19.108330] t1 : ffe00173ed90 t2 : 0001feca5000 s0 : ffe1f5b9fb80 [ 19.115536] s1 : ffe1f5b9fe10 a0 : 0053 a1 : 00020020 [ 19.122743] a2 : ffe1f5b9f870 a3 : a4 : ffe0016200f8 [ 19.129949] a5 : ffe0016200f8 a6 : 00c1 a7 : ffe0006f27fe [ 19.137156] s2 : ffdff8001000 s3 : s4 : 0004 [ 19.144376] s5 : s6 : s7 : ffe1f5b9fd20 [ 19.151570] s8 : ffdff8001000 s9 : ffe00172a148 s10: ffdff8002000 [ 19.158775] s11: ffe000c16e20 t3 : 0003ce50 t4 : 0003ce50 [ 19.165980] t5 : t6 : ffe001739462 [ 19.171255] status: 00020120 badaddr: cause: 0003 [ 19.179177] ---[ end trace 72fa85d58b123e2f ]--- [ 19.184544] Checked W+X mappings: failed, 513 W+X pages found [ 19.189561] Run /init as init process Not sure what that means. This is on [0.00] Linux version 5.8.0-10-generic (buildd@riscv64-qemu-lcy01-087) (gcc (Ubuntu 10.2.0-18ubuntu1) 10.2.0, GNU ld (GNU Binutils for Ubuntu) 2.35.1) #12+21.04.1-Ubuntu SMP Fri Nov 20 16:26:05 UTC 2020 (Ubuntu 5.8.0-10.12+21.04.1-generic 5.8.17) will try to get full logs. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-riscv/+bug/1905807/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
