Public bug reported:
[ 19.051518] Freeing unused kernel memory: 308K
[ 19.062326] ------------[ cut here ]------------
[ 19.066219] riscv/mm: Found insecure W+X mapping at address
(____ptrval____)/0xffffffdff8000000
[ 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: ffffffe000208f18 ra : ffffffe000208f18 sp : ffffffe1f5b9fb30
[ 19.101104] gp : ffffffe001728ee0 tp : ffffffe1f5bedc00 t0 :
ffffffe00173edf8
[ 19.108330] t1 : ffffffe00173ed90 t2 : 00000001feca5000 s0 :
ffffffe1f5b9fb80
[ 19.115536] s1 : ffffffe1f5b9fe10 a0 : 0000000000000053 a1 :
0000000200000020
[ 19.122743] a2 : ffffffe1f5b9f870 a3 : 0000000000000000 a4 :
ffffffe0016200f8
[ 19.129949] a5 : ffffffe0016200f8 a6 : 00000000000000c1 a7 :
ffffffe0006f27fe
[ 19.137156] s2 : ffffffdff8001000 s3 : 0000000000000000 s4 :
0000000000000004
[ 19.144376] s5 : 0000000000000000 s6 : 0000000000000000 s7 :
ffffffe1f5b9fd20
[ 19.151570] s8 : ffffffdff8001000 s9 : ffffffe00172a148 s10:
ffffffdff8002000
[ 19.158775] s11: ffffffe000c16e20 t3 : 000000000003ce50 t4 :
000000000003ce50
[ 19.165980] t5 : 0000000000000000 t6 : ffffffe001739462
[ 19.171255] status: 0000000200000120 badaddr: 0000000000000000 cause:
0000000000000003
[ 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
[ 0.000000] 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.
** Affects: linux-riscv (Ubuntu)
Importance: Undecided
Status: New
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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____)/0xffffffdff8000000
[ 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: ffffffe000208f18 ra : ffffffe000208f18 sp :
ffffffe1f5b9fb30
[ 19.101104] gp : ffffffe001728ee0 tp : ffffffe1f5bedc00 t0 :
ffffffe00173edf8
[ 19.108330] t1 : ffffffe00173ed90 t2 : 00000001feca5000 s0 :
ffffffe1f5b9fb80
[ 19.115536] s1 : ffffffe1f5b9fe10 a0 : 0000000000000053 a1 :
0000000200000020
[ 19.122743] a2 : ffffffe1f5b9f870 a3 : 0000000000000000 a4 :
ffffffe0016200f8
[ 19.129949] a5 : ffffffe0016200f8 a6 : 00000000000000c1 a7 :
ffffffe0006f27fe
[ 19.137156] s2 : ffffffdff8001000 s3 : 0000000000000000 s4 :
0000000000000004
[ 19.144376] s5 : 0000000000000000 s6 : 0000000000000000 s7 :
ffffffe1f5b9fd20
[ 19.151570] s8 : ffffffdff8001000 s9 : ffffffe00172a148 s10:
ffffffdff8002000
[ 19.158775] s11: ffffffe000c16e20 t3 : 000000000003ce50 t4 :
000000000003ce50
[ 19.165980] t5 : 0000000000000000 t6 : ffffffe001739462
[ 19.171255] status: 0000000200000120 badaddr: 0000000000000000 cause:
0000000000000003
[ 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
[ 0.000000] 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
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