[v6.6] general protection fault in process_scheduled_works
1 view
Skip to first unread message
syzbot
Jul 1, 2025, 8:12:34 PM7/1/25
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 3f5b4c104b7d Linux 6.6.95
git tree: linux-6.6.y
console output: https://syzkaller.appspot.com/x/log.txt?x=176f93d4580000
kernel config: https://syzkaller.appspot.com/x/.config?x=b80883c3ded77c16
dashboard link: https://syzkaller.appspot.com/bug?extid=3c24817080a2820ccb83
compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/0efd4e01816e/disk-3f5b4c10.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/f7c9d20858cc/vmlinux-3f5b4c10.xz
kernel image: https://storage.googleapis.com/syzbot-assets/18f8dc74ef68/bzImage-3f5b4c10.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3c2481...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 5831 Comm: kworker/1:5 Not tainted 6.6.95-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: do_submit_urb (events)
RIP: 0010:process_one_work kernel/workqueue.c:2575 [inline]
RIP: 0010:process_scheduled_works+0x5aa/0x15b0 kernel/workqueue.c:2711
Code: 89 ac 24 10 01 00 00 44 89 e8 c1 e8 05 83 e0 0f 89 03 48 8b 44 24 38 48 8d 58 08 48 89 d8 48 c1 e8 03 48 89 84 24 80 00 00 00 <42> 80 3c 20 00 74 08 48 89 df e8 27 95 86 00 48 89 5c 24 48 4c 8b
RSP: 0018:ffffc90004b3fbc0 EFLAGS: 00010002
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000001fffffffc0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff
RBP: ffffc90004b3fda8 R08: ffffffff970d1a73 R09: 1ffffffff2e1a34e
R10: dffffc0000000000 R11: fffffbfff2e1a34f R12: dffffc0000000000
R13: 0000001fffffffc0 R14: ffff88805e1b29f0 R15: ffff88802d0eba18
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcafde19d58 CR3: 000000002df2f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:process_one_work kernel/workqueue.c:2575 [inline]
RIP: 0010:process_scheduled_works+0x5aa/0x15b0 kernel/workqueue.c:2711
Code: 89 ac 24 10 01 00 00 44 89 e8 c1 e8 05 83 e0 0f 89 03 48 8b 44 24 38 48 8d 58 08 48 89 d8 48 c1 e8 03 48 89 84 24 80 00 00 00 <42> 80 3c 20 00 74 08 48 89 df e8 27 95 86 00 48 89 5c 24 48 4c 8b
RSP: 0018:ffffc90004b3fbc0 EFLAGS: 00010002
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000001fffffffc0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff
RBP: ffffc90004b3fda8 R08: ffffffff970d1a73 R09: 1ffffffff2e1a34e
R10: dffffc0000000000 R11: fffffbfff2e1a34f R12: dffffc0000000000
R13: 0000001fffffffc0 R14: ffff88805e1b29f0 R15: ffff88802d0eba18
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcafde19d58 CR3: 000000002df2f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 89 ac 24 10 01 00 00 mov %ebp,0x110(%rsp)
7: 44 89 e8 mov %r13d,%eax
a: c1 e8 05 shr $0x5,%eax
d: 83 e0 0f and $0xf,%eax
10: 89 03 mov %eax,(%rbx)
12: 48 8b 44 24 38 mov 0x38(%rsp),%rax
17: 48 8d 58 08 lea 0x8(%rax),%rbx
1b: 48 89 d8 mov %rbx,%rax
1e: 48 c1 e8 03 shr $0x3,%rax
22: 48 89 84 24 80 00 00 mov %rax,0x80(%rsp)
29: 00
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 27 95 86 00 call 0x869560
39: 48 89 5c 24 48 mov %rbx,0x48(%rsp)
3e: 4c rex.WR
3f: 8b .byte 0x8b
---
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 syzk...@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
syzbot found the following issue on:
HEAD commit: 3f5b4c104b7d Linux 6.6.95
git tree: linux-6.6.y
console output: https://syzkaller.appspot.com/x/log.txt?x=176f93d4580000
kernel config: https://syzkaller.appspot.com/x/.config?x=b80883c3ded77c16
dashboard link: https://syzkaller.appspot.com/bug?extid=3c24817080a2820ccb83
compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/0efd4e01816e/disk-3f5b4c10.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/f7c9d20858cc/vmlinux-3f5b4c10.xz
kernel image: https://storage.googleapis.com/syzbot-assets/18f8dc74ef68/bzImage-3f5b4c10.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3c2481...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 1 PID: 5831 Comm: kworker/1:5 Not tainted 6.6.95-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: do_submit_urb (events)
RIP: 0010:process_one_work kernel/workqueue.c:2575 [inline]
RIP: 0010:process_scheduled_works+0x5aa/0x15b0 kernel/workqueue.c:2711
Code: 89 ac 24 10 01 00 00 44 89 e8 c1 e8 05 83 e0 0f 89 03 48 8b 44 24 38 48 8d 58 08 48 89 d8 48 c1 e8 03 48 89 84 24 80 00 00 00 <42> 80 3c 20 00 74 08 48 89 df e8 27 95 86 00 48 89 5c 24 48 4c 8b
RSP: 0018:ffffc90004b3fbc0 EFLAGS: 00010002
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000001fffffffc0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff
RBP: ffffc90004b3fda8 R08: ffffffff970d1a73 R09: 1ffffffff2e1a34e
R10: dffffc0000000000 R11: fffffbfff2e1a34f R12: dffffc0000000000
R13: 0000001fffffffc0 R14: ffff88805e1b29f0 R15: ffff88802d0eba18
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcafde19d58 CR3: 000000002df2f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:process_one_work kernel/workqueue.c:2575 [inline]
RIP: 0010:process_scheduled_works+0x5aa/0x15b0 kernel/workqueue.c:2711
Code: 89 ac 24 10 01 00 00 44 89 e8 c1 e8 05 83 e0 0f 89 03 48 8b 44 24 38 48 8d 58 08 48 89 d8 48 c1 e8 03 48 89 84 24 80 00 00 00 <42> 80 3c 20 00 74 08 48 89 df e8 27 95 86 00 48 89 5c 24 48 4c 8b
RSP: 0018:ffffc90004b3fbc0 EFLAGS: 00010002
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000001fffffffc0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff
RBP: ffffc90004b3fda8 R08: ffffffff970d1a73 R09: 1ffffffff2e1a34e
R10: dffffc0000000000 R11: fffffbfff2e1a34f R12: dffffc0000000000
R13: 0000001fffffffc0 R14: ffff88805e1b29f0 R15: ffff88802d0eba18
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fcafde19d58 CR3: 000000002df2f000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 89 ac 24 10 01 00 00 mov %ebp,0x110(%rsp)
7: 44 89 e8 mov %r13d,%eax
a: c1 e8 05 shr $0x5,%eax
d: 83 e0 0f and $0xf,%eax
10: 89 03 mov %eax,(%rbx)
12: 48 8b 44 24 38 mov 0x38(%rsp),%rax
17: 48 8d 58 08 lea 0x8(%rax),%rbx
1b: 48 89 d8 mov %rbx,%rax
1e: 48 c1 e8 03 shr $0x3,%rax
22: 48 89 84 24 80 00 00 mov %rax,0x80(%rsp)
29: 00
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 27 95 86 00 call 0x869560
39: 48 89 5c 24 48 mov %rbx,0x48(%rsp)
3e: 4c rex.WR
3f: 8b .byte 0x8b
---
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 syzk...@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
syzbot
Jul 5, 2025, 6:09:30 PM7/5/25
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 3f5b4c104b7d Linux 6.6.95
git tree: linux-6.6.y
console output: https://syzkaller.appspot.com/x/log.txt?x=150e0bd4580000
kernel config: https://syzkaller.appspot.com/x/.config?x=747dbf84b0ecd30c
dashboard link: https://syzkaller.appspot.com/bug?extid=3c24817080a2820ccb83
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16169c8c580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17e75c8c580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/421f6e2d0cd1/disk-3f5b4c10.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/90250695b20b/vmlinux-3f5b4c10.xz
kernel image: https://storage.googleapis.com/syzbot-assets/32250e77bce9/bzImage-3f5b4c10.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/d1dbc0eb0663/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3c2481...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
CPU: 0 PID: 5859 Comm: kworker/0:4 Not tainted 6.6.95-syzkaller #0
R10: dffffc0000000000 R11: fffffbfff2e293ef R12: dffffc0000000000
R13: 0000001fffffffc0 R14: ffff888072668570 R15: ffff888025a07f18
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
R10: dffffc0000000000 R11: fffffbfff2e293ef R12: dffffc0000000000
R13: 0000001fffffffc0 R14: ffff888072668570 R15: ffff888025a07f18
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
HEAD commit: 3f5b4c104b7d Linux 6.6.95
git tree: linux-6.6.y
kernel config: https://syzkaller.appspot.com/x/.config?x=747dbf84b0ecd30c
dashboard link: https://syzkaller.appspot.com/bug?extid=3c24817080a2820ccb83
compiler: Debian clang version 20.1.7 (++20250616065708+6146a88f6049-1~exp1~20250616065826.132), Debian LLD 20.1.7
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=16169c8c580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17e75c8c580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/421f6e2d0cd1/disk-3f5b4c10.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/90250695b20b/vmlinux-3f5b4c10.xz
kernel image: https://storage.googleapis.com/syzbot-assets/32250e77bce9/bzImage-3f5b4c10.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/d1dbc0eb0663/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+3c2481...@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f]
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
Workqueue: do_submit_urb (events)
RIP: 0010:process_one_work kernel/workqueue.c:2575 [inline]
RIP: 0010:process_scheduled_works+0x5aa/0x15b0 kernel/workqueue.c:2711
Code: 89 ac 24 10 01 00 00 44 89 e8 c1 e8 05 83 e0 0f 89 03 48 8b 44 24 38 48 8d 58 08 48 89 d8 48 c1 e8 03 48 89 84 24 80 00 00 00 <42> 80 3c 20 00 74 08 48 89 df e8 27 95 86 00 48 89 5c 24 48 4c 8b
RSP: 0018:ffffc90003307bc0 EFLAGS: 00010002
Workqueue: do_submit_urb (events)
RIP: 0010:process_one_work kernel/workqueue.c:2575 [inline]
RIP: 0010:process_scheduled_works+0x5aa/0x15b0 kernel/workqueue.c:2711
Code: 89 ac 24 10 01 00 00 44 89 e8 c1 e8 05 83 e0 0f 89 03 48 8b 44 24 38 48 8d 58 08 48 89 d8 48 c1 e8 03 48 89 84 24 80 00 00 00 <42> 80 3c 20 00 74 08 48 89 df e8 27 95 86 00 48 89 5c 24 48 4c 8b
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000001fffffffc0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff
RBP: ffffc90003307da8 R08: ffffffff97149f73 R09: 1ffffffff2e293ee
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff2e293ef R12: dffffc0000000000
R13: 0000001fffffffc0 R14: ffff888072668570 R15: ffff888025a07f18
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b4e5c30a0 CR3: 000000002e4e5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:process_one_work kernel/workqueue.c:2575 [inline]
RIP: 0010:process_scheduled_works+0x5aa/0x15b0 kernel/workqueue.c:2711
Code: 89 ac 24 10 01 00 00 44 89 e8 c1 e8 05 83 e0 0f 89 03 48 8b 44 24 38 48 8d 58 08 48 89 d8 48 c1 e8 03 48 89 84 24 80 00 00 00 <42> 80 3c 20 00 74 08 48 89 df e8 27 95 86 00 48 89 5c 24 48 4c 8b
RSP: 0018:ffffc90003307bc0 EFLAGS: 00010002
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
kthread+0x2fa/0x390 kernel/kthread.c:388
ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:process_one_work kernel/workqueue.c:2575 [inline]
RIP: 0010:process_scheduled_works+0x5aa/0x15b0 kernel/workqueue.c:2711
Code: 89 ac 24 10 01 00 00 44 89 e8 c1 e8 05 83 e0 0f 89 03 48 8b 44 24 38 48 8d 58 08 48 89 d8 48 c1 e8 03 48 89 84 24 80 00 00 00 <42> 80 3c 20 00 74 08 48 89 df e8 27 95 86 00 48 89 5c 24 48 4c 8b
RAX: 0000000000000001 RBX: 0000000000000008 RCX: 0000001fffffffc0
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff
RBP: ffffc90003307da8 R08: ffffffff97149f73 R09: 1ffffffff2e293ee
RDX: 0000000000000000 RSI: 0000000000000004 RDI: 00000000ffffffff
R10: dffffc0000000000 R11: fffffbfff2e293ef R12: dffffc0000000000
R13: 0000001fffffffc0 R14: ffff888072668570 R15: ffff888025a07f18
FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1b4e5c30a0 CR3: 000000002e4e5000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 89 ac 24 10 01 00 00 mov %ebp,0x110(%rsp)
7: 44 89 e8 mov %r13d,%eax
a: c1 e8 05 shr $0x5,%eax
d: 83 e0 0f and $0xf,%eax
10: 89 03 mov %eax,(%rbx)
12: 48 8b 44 24 38 mov 0x38(%rsp),%rax
17: 48 8d 58 08 lea 0x8(%rax),%rbx
1b: 48 89 d8 mov %rbx,%rax
1e: 48 c1 e8 03 shr $0x3,%rax
22: 48 89 84 24 80 00 00 mov %rax,0x80(%rsp)
29: 00
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 27 95 86 00 call 0x869560
39: 48 89 5c 24 48 mov %rbx,0x48(%rsp)
3e: 4c rex.WR
3f: 8b .byte 0x8b
---
If you want syzbot to run the reproducer, reply with:
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 89 ac 24 10 01 00 00 mov %ebp,0x110(%rsp)
7: 44 89 e8 mov %r13d,%eax
a: c1 e8 05 shr $0x5,%eax
d: 83 e0 0f and $0xf,%eax
10: 89 03 mov %eax,(%rbx)
12: 48 8b 44 24 38 mov 0x38(%rsp),%rax
17: 48 8d 58 08 lea 0x8(%rax),%rbx
1b: 48 89 d8 mov %rbx,%rax
1e: 48 c1 e8 03 shr $0x3,%rax
22: 48 89 84 24 80 00 00 mov %rax,0x80(%rsp)
29: 00
* 2a: 42 80 3c 20 00 cmpb $0x0,(%rax,%r12,1) <-- trapping instruction
2f: 74 08 je 0x39
31: 48 89 df mov %rbx,%rdi
34: e8 27 95 86 00 call 0x869560
39: 48 89 5c 24 48 mov %rbx,0x48(%rsp)
3e: 4c rex.WR
3f: 8b .byte 0x8b
---
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
Reply all
Reply to author
Forward
0 new messages