* [syzbot] [mm?] BUG: unable to handle kernel paging request in mmap_region
@ 2024-08-27 17:28 syzbot
2024-08-27 19:38 ` Liam R. Howlett
0 siblings, 1 reply; 3+ messages in thread
From: syzbot @ 2024-08-27 17:28 UTC (permalink / raw)
To: Liam.Howlett, akpm, linux-kernel, linux-mm, lorenzo.stoakes,
syzkaller-bugs, vbabka
Hello,
syzbot found the following issue on:
HEAD commit: 94ede2a3e913 profiling: remove stale percpu flip buffer va..
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=122f6d9d980000
kernel config: https://syzkaller.appspot.com/x/.config?x=8b0cca2f3880513d
dashboard link: https://syzkaller.appspot.com/bug?extid=3bca0d9eb36e75bc36ed
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/e10dde6d5041/disk-94ede2a3.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/3bda8d01811d/vmlinux-94ede2a3.xz
kernel image: https://storage.googleapis.com/syzbot-assets/653dc61d9ae6/bzImage-94ede2a3.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3bca0d9eb36e75bc36ed@syzkaller.appspotmail.com
kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
BUG: unable to handle page fault for address: ffffea000169a5c0
#PF: supervisor instruction fetch in kernel mode
#PF: error_code(0x0011) - permissions violation
PGD 13fff7067 P4D 13fff7067 PUD 13fff6067 PMD 800000013d4001e3
Oops: Oops: 0011 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 6910 Comm: syz.0.357 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
RIP: 0010:0xffffea000169a5c0
Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00
RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286
RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000
RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120
RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98
R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600
R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8
FS: 00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0
Call Trace:
<TASK>
mmap_region+0x1891/0x2090 mm/mmap.c:3058
do_mmap+0x8f9/0x1010 mm/mmap.c:1468
vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1514
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f3200977299
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f32016ce048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f3200b06058 RCX: 00007f3200977299
RDX: 0000000000000001 RSI: 0000000000003000 RDI: 0000000020000000
RBP: 00007f32009e48e6 R08: 0000000000000012 R09: 0000000000000000
R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000
R13: 000000000000006e R14: 00007f3200b06058 R15: 00007ffebfee75d8
</TASK>
Modules linked in:
CR2: ffffea000169a5c0
---[ end trace 0000000000000000 ]---
RIP: 0010:0xffffea000169a5c0
Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00
RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286
RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000
RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120
RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98
R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600
R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8
FS: 00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0
---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.
syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
If the report is already addressed, let syzbot know by replying with:
#syz fix: exact-commit-title
If you want to overwrite report's subsystems, reply with:
#syz set subsystems: new-subsystem
(See the list of subsystem names on the web dashboard)
If the report is a duplicate of another one, reply with:
#syz dup: exact-subject-of-another-report
If you want to undo deduplication, reply with:
#syz undup
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] [mm?] BUG: unable to handle kernel paging request in mmap_region
2024-08-27 17:28 [syzbot] [mm?] BUG: unable to handle kernel paging request in mmap_region syzbot
@ 2024-08-27 19:38 ` Liam R. Howlett
2024-08-27 19:38 ` syzbot
0 siblings, 1 reply; 3+ messages in thread
From: Liam R. Howlett @ 2024-08-27 19:38 UTC (permalink / raw)
To: syzbot
Cc: akpm, linux-kernel, linux-mm, lorenzo.stoakes, syzkaller-bugs, vbabka
* syzbot <syzbot+3bca0d9eb36e75bc36ed@syzkaller.appspotmail.com> [240827 13:28]:
> Hello,
>
> syzbot found the following issue on:
>
> HEAD commit: 94ede2a3e913 profiling: remove stale percpu flip buffer va..
> git tree: upstream
> console output: https://syzkaller.appspot.com/x/log.txt?x=122f6d9d980000
> kernel config: https://syzkaller.appspot.com/x/.config?x=8b0cca2f3880513d
> dashboard link: https://syzkaller.appspot.com/bug?extid=3bca0d9eb36e75bc36ed
> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
>
> Unfortunately, I don't have any reproducer for this issue yet.
>
> Downloadable assets:
> disk image: https://storage.googleapis.com/syzbot-assets/e10dde6d5041/disk-94ede2a3.raw.xz
> vmlinux: https://storage.googleapis.com/syzbot-assets/3bda8d01811d/vmlinux-94ede2a3.xz
> kernel image: https://storage.googleapis.com/syzbot-assets/653dc61d9ae6/bzImage-94ede2a3.xz
>
> IMPORTANT: if you fix the issue, please add the following tag to the commit:
> Reported-by: syzbot+3bca0d9eb36e75bc36ed@syzkaller.appspotmail.com
>
> kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
> BUG: unable to handle page fault for address: ffffea000169a5c0
> #PF: supervisor instruction fetch in kernel mode
> #PF: error_code(0x0011) - permissions violation
> PGD 13fff7067 P4D 13fff7067 PUD 13fff6067 PMD 800000013d4001e3
> Oops: Oops: 0011 [#1] PREEMPT SMP KASAN NOPTI
> CPU: 0 UID: 0 PID: 6910 Comm: syz.0.357 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0
> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
> RIP: 0010:0xffffea000169a5c0
> Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00
> RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286
> RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000
> RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120
> RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98
> R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600
> R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8
> FS: 00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0
> Call Trace:
> <TASK>
> mmap_region+0x1891/0x2090 mm/mmap.c:3058
> do_mmap+0x8f9/0x1010 mm/mmap.c:1468
> vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
> ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1514
> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
> entry_SYSCALL_64_after_hwframe+0x77/0x7f
> RIP: 0033:0x7f3200977299
> Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
> RSP: 002b:00007f32016ce048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
> RAX: ffffffffffffffda RBX: 00007f3200b06058 RCX: 00007f3200977299
> RDX: 0000000000000001 RSI: 0000000000003000 RDI: 0000000020000000
> RBP: 00007f32009e48e6 R08: 0000000000000012 R09: 0000000000000000
> R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000
> R13: 000000000000006e R14: 00007f3200b06058 R15: 00007ffebfee75d8
> </TASK>
> Modules linked in:
> CR2: ffffea000169a5c0
> ---[ end trace 0000000000000000 ]---
> RIP: 0010:0xffffea000169a5c0
> Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00
> RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286
> RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000
> RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120
> RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98
> R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600
> R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8
> FS: 00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0
>
>
> ---
> This report is generated by a bot. It may contain errors.
> See https://goo.gl/tpsmEJ for more information about syzbot.
> syzbot engineers can be reached at syzkaller@googlegroups.com.
>
> syzbot will keep track of this issue. See:
> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>
> If the report is already addressed, let syzbot know by replying with:
> #syz fix: exact-commit-title
#syz test: git://git.infradead.org/users/jedix/linux-maple.git 71e79d60d610967946f5b5a9fe12dd239216ac39
>
> If you want to overwrite report's subsystems, reply with:
> #syz set subsystems: new-subsystem
> (See the list of subsystem names on the web dashboard)
>
> If the report is a duplicate of another one, reply with:
> #syz dup: exact-subject-of-another-report
>
> If you want to undo deduplication, reply with:
> #syz undup
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: [syzbot] [mm?] BUG: unable to handle kernel paging request in mmap_region
2024-08-27 19:38 ` Liam R. Howlett
@ 2024-08-27 19:38 ` syzbot
0 siblings, 0 replies; 3+ messages in thread
From: syzbot @ 2024-08-27 19:38 UTC (permalink / raw)
To: liam.howlett
Cc: akpm, liam.howlett, linux-kernel, linux-mm, lorenzo.stoakes,
syzkaller-bugs, vbabka
> * syzbot <syzbot+3bca0d9eb36e75bc36ed@syzkaller.appspotmail.com> [240827 13:28]:
>> Hello,
>>
>> syzbot found the following issue on:
>>
>> HEAD commit: 94ede2a3e913 profiling: remove stale percpu flip buffer va..
>> git tree: upstream
>> console output: https://syzkaller.appspot.com/x/log.txt?x=122f6d9d980000
>> kernel config: https://syzkaller.appspot.com/x/.config?x=8b0cca2f3880513d
>> dashboard link: https://syzkaller.appspot.com/bug?extid=3bca0d9eb36e75bc36ed
>> compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
>>
>> Unfortunately, I don't have any reproducer for this issue yet.
>>
>> Downloadable assets:
>> disk image: https://storage.googleapis.com/syzbot-assets/e10dde6d5041/disk-94ede2a3.raw.xz
>> vmlinux: https://storage.googleapis.com/syzbot-assets/3bda8d01811d/vmlinux-94ede2a3.xz
>> kernel image: https://storage.googleapis.com/syzbot-assets/653dc61d9ae6/bzImage-94ede2a3.xz
>>
>> IMPORTANT: if you fix the issue, please add the following tag to the commit:
>> Reported-by: syzbot+3bca0d9eb36e75bc36ed@syzkaller.appspotmail.com
>>
>> kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
>> BUG: unable to handle page fault for address: ffffea000169a5c0
>> #PF: supervisor instruction fetch in kernel mode
>> #PF: error_code(0x0011) - permissions violation
>> PGD 13fff7067 P4D 13fff7067 PUD 13fff6067 PMD 800000013d4001e3
>> Oops: Oops: 0011 [#1] PREEMPT SMP KASAN NOPTI
>> CPU: 0 UID: 0 PID: 6910 Comm: syz.0.357 Not tainted 6.11.0-rc1-syzkaller-00043-g94ede2a3e913 #0
>> Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/27/2024
>> RIP: 0010:0xffffea000169a5c0
>> Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00
>> RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286
>> RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000
>> RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120
>> RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98
>> R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600
>> R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8
>> FS: 00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
>> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0
>> Call Trace:
>> <TASK>
>> mmap_region+0x1891/0x2090 mm/mmap.c:3058
>> do_mmap+0x8f9/0x1010 mm/mmap.c:1468
>> vm_mmap_pgoff+0x1dd/0x3d0 mm/util.c:588
>> ksys_mmap_pgoff+0x4f1/0x720 mm/mmap.c:1514
>> do_syscall_x64 arch/x86/entry/common.c:52 [inline]
>> do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
>> entry_SYSCALL_64_after_hwframe+0x77/0x7f
>> RIP: 0033:0x7f3200977299
>> Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
>> RSP: 002b:00007f32016ce048 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
>> RAX: ffffffffffffffda RBX: 00007f3200b06058 RCX: 00007f3200977299
>> RDX: 0000000000000001 RSI: 0000000000003000 RDI: 0000000020000000
>> RBP: 00007f32009e48e6 R08: 0000000000000012 R09: 0000000000000000
>> R10: 0000000000000012 R11: 0000000000000246 R12: 0000000000000000
>> R13: 000000000000006e R14: 00007f3200b06058 R15: 00007ffebfee75d8
>> </TASK>
>> Modules linked in:
>> CR2: ffffea000169a5c0
>> ---[ end trace 0000000000000000 ]---
>> RIP: 0010:0xffffea000169a5c0
>> Code: ad de 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 24 00 24 00 00 00 00 00 ff ff ff fd 01 00 00 00 01 e8 e4 2c 80 88 ff ff <00> 00 00 00 00 f0 ff 00 00 00 00 00 00 00 00 00 22 01 00 00 00 00
>> RSP: 0018:ffffc90002e0f8f8 EFLAGS: 00010286
>> RAX: 1ffff1100be13426 RBX: ffff88805f09a130 RCX: dffffc0000000000
>> RDX: ffff88807f842600 RSI: 0000000000000002 RDI: ffff88805f09a120
>> RBP: ffffc90002e0fa30 R08: ffff88802b3aecc7 R09: 1ffff11005675d98
>> R10: dffffc0000000000 R11: ffffea000169a5c0 R12: ffff88807f842600
>> R13: ffff88805f09a120 R14: ffff88802b3aed50 R15: ffff88802b3aecb8
>> FS: 00007f32016ce6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000
>> CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> CR2: ffffea000169a5c0 CR3: 000000005af9c000 CR4: 0000000000350ef0
>>
>>
>> ---
>> This report is generated by a bot. It may contain errors.
>> See https://goo.gl/tpsmEJ for more information about syzbot.
>> syzbot engineers can be reached at syzkaller@googlegroups.com.
>>
>> syzbot will keep track of this issue. See:
>> https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
>>
>> If the report is already addressed, let syzbot know by replying with:
>> #syz fix: exact-commit-title
>
> #syz test: git://git.infradead.org/users/jedix/linux-maple.git 71e79d60d610967946f5b5a9fe12dd239216ac39
This crash does not have a reproducer. I cannot test it.
>
>>
>> If you want to overwrite report's subsystems, reply with:
>> #syz set subsystems: new-subsystem
>> (See the list of subsystem names on the web dashboard)
>>
>> If the report is a duplicate of another one, reply with:
>> #syz dup: exact-subject-of-another-report
>>
>> If you want to undo deduplication, reply with:
>> #syz undup
>>
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2024-08-27 19:38 UTC | newest]
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2024-08-27 17:28 [syzbot] [mm?] BUG: unable to handle kernel paging request in mmap_region syzbot
2024-08-27 19:38 ` Liam R. Howlett
2024-08-27 19:38 ` syzbot
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