[Android 5.15] KASAN: null-ptr-deref Write in f2fs_issue_flush
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syzbot
Sep 30, 2025, 3:35:31 PM (2 days ago) Sep 30
to syzkaller-a...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 2bbc293701f8 Merge android13-5.15 into android13-5.15-lts
git tree: android13-5.15-lts
console output: https://syzkaller.appspot.com/x/log.txt?x=135496e2580000
kernel config: https://syzkaller.appspot.com/x/.config?x=aba6efd42433473
dashboard link: https://syzkaller.appspot.com/bug?extid=3675940c01f6ac7388f3
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=155b2334580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10da8260580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/e26750c4daa8/disk-2bbc2937.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/992dedec7175/vmlinux-2bbc2937.xz
kernel image: https://storage.googleapis.com/syzbot-assets/57aed73b2d06/bzImage-2bbc2937.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/8556a1f4612e/mount_0.gz
fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=1717ad04580000)
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+367594...@syzkaller.appspotmail.com
F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
=======================================================
WARNING: The mand mount option has been deprecated and
and is ignored by this kernel. Remove the mand
option from the mount to silence this warning.
=======================================================
F2FS-fs (loop2): Try to recover all the superblocks, ret: 0
==================================================================
BUG: KASAN: null-ptr-deref in f2fs_issue_flush+0x14c/0x890 fs/f2fs/segment.c:-1
Write of size 4 at addr 0000000000000024 by task syz.2.17/373
CPU: 0 PID: 373 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
<TASK>
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
__kasan_report mm/kasan/report.c:431 [inline]
kasan_report+0xe7/0x140 mm/kasan/report.c:444
check_region_inline mm/kasan/generic.c:-1 [inline]
kasan_check_range+0x280/0x290 mm/kasan/generic.c:189
__kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
f2fs_issue_flush+0x14c/0x890 fs/f2fs/segment.c:-1
f2fs_do_sync_file+0x1040/0x19e0 fs/f2fs/file.c:381
f2fs_ioc_commit_atomic_write fs/f2fs/file.c:2170 [inline]
__f2fs_ioctl+0x30d0/0xb140 fs/f2fs/file.c:4185
f2fs_ioctl+0x149/0x240 fs/f2fs/file.c:4273
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:860
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0247233ec9
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:00007ffcc90518c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f024748afa0 RCX: 00007f0247233ec9
RDX: 0000000000000000 RSI: 000000000000f502 RDI: 0000000000000005
RBP: 00007f02472b6f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f024748afa0 R14: 00007f024748afa0 R15: 0000000000000003
</TASK>
==================================================================
BUG: kernel NULL pointer dereference, address: 0000000000000024
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 12b390067 P4D 12b390067 PUD 0
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:arch_atomic_inc fs/f2fs/segment.c:-1 [inline]
RIP: 0010:atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
RIP: 0010:f2fs_issue_flush+0x15d/0x890 fs/f2fs/segment.c:595
Code: 6a 54 ff 4c 89 64 24 28 49 83 c4 24 4c 89 e7 be 04 00 00 00 e8 f4 e7 92 ff 81 e3 00 04 00 00 0f 85 52 01 00 00 4c 89 64 24 08 <f0> 41 ff 04 24 4c 8b 74 24 20 4d 8d ae 3c 0c 00 00 4d 89 ec 49 c1
RSP: 0018:ffffc900020276c0 EFLAGS: 00010246
RAX: ffff88810ffa6200 RBX: 0000000000000000 RCX: ffff88810ffa62c0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000ffffffff
RBP: ffffc900020277d0 R08: 0000000000000004 R09: 0000000000000003
R10: fffffbfff0e1824c R11: 1ffffffff0e1824c R12: 0000000000000024
R13: ffffc90002027720 R14: 0000000000000000 R15: 1ffff92000404ee0
FS: 000055555f8ad500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000024 CR3: 000000011df30000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
f2fs_do_sync_file+0x1040/0x19e0 fs/f2fs/file.c:381
f2fs_ioc_commit_atomic_write fs/f2fs/file.c:2170 [inline]
__f2fs_ioctl+0x30d0/0xb140 fs/f2fs/file.c:4185
f2fs_ioctl+0x149/0x240 fs/f2fs/file.c:4273
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:860
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0247233ec9
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:00007ffcc90518c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f024748afa0 RCX: 00007f0247233ec9
RDX: 0000000000000000 RSI: 000000000000f502 RDI: 0000000000000005
RBP: 00007f02472b6f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f024748afa0 R14: 00007f024748afa0 R15: 0000000000000003
</TASK>
Modules linked in:
CR2: 0000000000000024
---[ end trace ed289fbc20824b6b ]---
RIP: 0010:arch_atomic_inc fs/f2fs/segment.c:-1 [inline]
RIP: 0010:atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
RIP: 0010:f2fs_issue_flush+0x15d/0x890 fs/f2fs/segment.c:595
Code: 6a 54 ff 4c 89 64 24 28 49 83 c4 24 4c 89 e7 be 04 00 00 00 e8 f4 e7 92 ff 81 e3 00 04 00 00 0f 85 52 01 00 00 4c 89 64 24 08 <f0> 41 ff 04 24 4c 8b 74 24 20 4d 8d ae 3c 0c 00 00 4d 89 ec 49 c1
RSP: 0018:ffffc900020276c0 EFLAGS: 00010246
RAX: ffff88810ffa6200 RBX: 0000000000000000 RCX: ffff88810ffa62c0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000ffffffff
RBP: ffffc900020277d0 R08: 0000000000000004 R09: 0000000000000003
R10: fffffbfff0e1824c R11: 1ffffffff0e1824c R12: 0000000000000024
R13: ffffc90002027720 R14: 0000000000000000 R15: 1ffff92000404ee0
FS: 000055555f8ad500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000024 CR3: 000000011df30000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 6a 54 push $0x54
2: ff 4c 89 64 decl 0x64(%rcx,%rcx,4)
6: 24 28 and $0x28,%al
8: 49 83 c4 24 add $0x24,%r12
c: 4c 89 e7 mov %r12,%rdi
f: be 04 00 00 00 mov $0x4,%esi
14: e8 f4 e7 92 ff call 0xff92e80d
19: 81 e3 00 04 00 00 and $0x400,%ebx
1f: 0f 85 52 01 00 00 jne 0x177
25: 4c 89 64 24 08 mov %r12,0x8(%rsp)
* 2a: f0 41 ff 04 24 lock incl (%r12) <-- trapping instruction
2f: 4c 8b 74 24 20 mov 0x20(%rsp),%r14
34: 4d 8d ae 3c 0c 00 00 lea 0xc3c(%r14),%r13
3b: 4d 89 ec mov %r13,%r12
3e: 49 rex.WB
3f: c1 .byte 0xc1
---
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 syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
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: 2bbc293701f8 Merge android13-5.15 into android13-5.15-lts
git tree: android13-5.15-lts
console output: https://syzkaller.appspot.com/x/log.txt?x=135496e2580000
kernel config: https://syzkaller.appspot.com/x/.config?x=aba6efd42433473
dashboard link: https://syzkaller.appspot.com/bug?extid=3675940c01f6ac7388f3
compiler: Debian clang version 20.1.8 (++20250708063551+0c9f909b7976-1~exp1~20250708183702.136), Debian LLD 20.1.8
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=155b2334580000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=10da8260580000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/e26750c4daa8/disk-2bbc2937.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/992dedec7175/vmlinux-2bbc2937.xz
kernel image: https://storage.googleapis.com/syzbot-assets/57aed73b2d06/bzImage-2bbc2937.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/8556a1f4612e/mount_0.gz
fsck result: failed (log: https://syzkaller.appspot.com/x/fsck.log?x=1717ad04580000)
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+367594...@syzkaller.appspotmail.com
F2FS-fs (loop2): Mounted with checkpoint version = 48b305e5
=======================================================
WARNING: The mand mount option has been deprecated and
and is ignored by this kernel. Remove the mand
option from the mount to silence this warning.
=======================================================
F2FS-fs (loop2): Try to recover all the superblocks, ret: 0
==================================================================
BUG: KASAN: null-ptr-deref in f2fs_issue_flush+0x14c/0x890 fs/f2fs/segment.c:-1
Write of size 4 at addr 0000000000000024 by task syz.2.17/373
CPU: 0 PID: 373 Comm: syz.2.17 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
Call Trace:
<TASK>
__dump_stack+0x21/0x30 lib/dump_stack.c:88
dump_stack_lvl+0xee/0x150 lib/dump_stack.c:106
__kasan_report mm/kasan/report.c:431 [inline]
kasan_report+0xe7/0x140 mm/kasan/report.c:444
check_region_inline mm/kasan/generic.c:-1 [inline]
kasan_check_range+0x280/0x290 mm/kasan/generic.c:189
__kasan_check_write+0x14/0x20 mm/kasan/shadow.c:37
f2fs_issue_flush+0x14c/0x890 fs/f2fs/segment.c:-1
f2fs_do_sync_file+0x1040/0x19e0 fs/f2fs/file.c:381
f2fs_ioc_commit_atomic_write fs/f2fs/file.c:2170 [inline]
__f2fs_ioctl+0x30d0/0xb140 fs/f2fs/file.c:4185
f2fs_ioctl+0x149/0x240 fs/f2fs/file.c:4273
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:860
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0247233ec9
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:00007ffcc90518c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f024748afa0 RCX: 00007f0247233ec9
RDX: 0000000000000000 RSI: 000000000000f502 RDI: 0000000000000005
RBP: 00007f02472b6f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f024748afa0 R14: 00007f024748afa0 R15: 0000000000000003
</TASK>
==================================================================
BUG: kernel NULL pointer dereference, address: 0000000000000024
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 12b390067 P4D 12b390067 PUD 0
Oops: 0002 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 373 Comm: syz.2.17 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/18/2025
RIP: 0010:arch_atomic_inc fs/f2fs/segment.c:-1 [inline]
RIP: 0010:atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
RIP: 0010:f2fs_issue_flush+0x15d/0x890 fs/f2fs/segment.c:595
Code: 6a 54 ff 4c 89 64 24 28 49 83 c4 24 4c 89 e7 be 04 00 00 00 e8 f4 e7 92 ff 81 e3 00 04 00 00 0f 85 52 01 00 00 4c 89 64 24 08 <f0> 41 ff 04 24 4c 8b 74 24 20 4d 8d ae 3c 0c 00 00 4d 89 ec 49 c1
RSP: 0018:ffffc900020276c0 EFLAGS: 00010246
RAX: ffff88810ffa6200 RBX: 0000000000000000 RCX: ffff88810ffa62c0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000ffffffff
RBP: ffffc900020277d0 R08: 0000000000000004 R09: 0000000000000003
R10: fffffbfff0e1824c R11: 1ffffffff0e1824c R12: 0000000000000024
R13: ffffc90002027720 R14: 0000000000000000 R15: 1ffff92000404ee0
FS: 000055555f8ad500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000024 CR3: 000000011df30000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
f2fs_do_sync_file+0x1040/0x19e0 fs/f2fs/file.c:381
f2fs_ioc_commit_atomic_write fs/f2fs/file.c:2170 [inline]
__f2fs_ioctl+0x30d0/0xb140 fs/f2fs/file.c:4185
f2fs_ioctl+0x149/0x240 fs/f2fs/file.c:4273
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0x121/0x1a0 fs/ioctl.c:860
__x64_sys_ioctl+0x7b/0x90 fs/ioctl.c:860
x64_sys_call+0x2f/0x9a0 arch/x86/include/generated/asm/syscalls_64.h:17
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0247233ec9
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:00007ffcc90518c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f024748afa0 RCX: 00007f0247233ec9
RDX: 0000000000000000 RSI: 000000000000f502 RDI: 0000000000000005
RBP: 00007f02472b6f91 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f024748afa0 R14: 00007f024748afa0 R15: 0000000000000003
</TASK>
Modules linked in:
CR2: 0000000000000024
---[ end trace ed289fbc20824b6b ]---
RIP: 0010:arch_atomic_inc fs/f2fs/segment.c:-1 [inline]
RIP: 0010:atomic_inc include/linux/atomic/atomic-instrumented.h:182 [inline]
RIP: 0010:f2fs_issue_flush+0x15d/0x890 fs/f2fs/segment.c:595
Code: 6a 54 ff 4c 89 64 24 28 49 83 c4 24 4c 89 e7 be 04 00 00 00 e8 f4 e7 92 ff 81 e3 00 04 00 00 0f 85 52 01 00 00 4c 89 64 24 08 <f0> 41 ff 04 24 4c 8b 74 24 20 4d 8d ae 3c 0c 00 00 4d 89 ec 49 c1
RSP: 0018:ffffc900020276c0 EFLAGS: 00010246
RAX: ffff88810ffa6200 RBX: 0000000000000000 RCX: ffff88810ffa62c0
RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000ffffffff
RBP: ffffc900020277d0 R08: 0000000000000004 R09: 0000000000000003
R10: fffffbfff0e1824c R11: 1ffffffff0e1824c R12: 0000000000000024
R13: ffffc90002027720 R14: 0000000000000000 R15: 1ffff92000404ee0
FS: 000055555f8ad500(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000024 CR3: 000000011df30000 CR4: 00000000003506b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: 6a 54 push $0x54
2: ff 4c 89 64 decl 0x64(%rcx,%rcx,4)
6: 24 28 and $0x28,%al
8: 49 83 c4 24 add $0x24,%r12
c: 4c 89 e7 mov %r12,%rdi
f: be 04 00 00 00 mov $0x4,%esi
14: e8 f4 e7 92 ff call 0xff92e80d
19: 81 e3 00 04 00 00 and $0x400,%ebx
1f: 0f 85 52 01 00 00 jne 0x177
25: 4c 89 64 24 08 mov %r12,0x8(%rsp)
* 2a: f0 41 ff 04 24 lock incl (%r12) <-- trapping instruction
2f: 4c 8b 74 24 20 mov 0x20(%rsp),%r14
34: 4d 8d ae 3c 0c 00 00 lea 0xc3c(%r14),%r13
3b: 4d 89 ec mov %r13,%r12
3e: 49 rex.WB
3f: c1 .byte 0xc1
---
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 syzbot to run the reproducer, reply with:
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
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
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