From: syzbot <syzbot+d015b6c2fbb5c383bf08@syzkaller.appspotmail.com>
To: chao@kernel.org, jaegeuk@kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: [f2fs-dev] [syzbot] [f2fs?] general protection fault in __drop_extent_tree
Date: Mon, 10 Apr 2023 23:54:45 -0700 [thread overview]
Message-ID: <0000000000007c47b505f909f71d@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 7e364e56293b Linux 6.3-rc5
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1666b8f1c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=d9a438ce47536f0c
dashboard link: https://syzkaller.appspot.com/bug?extid=d015b6c2fbb5c383bf08
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/54c56bddacf4/disk-7e364e56.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/447e5d1af596/vmlinux-7e364e56.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3e2d1545e7be/bzImage-7e364e56.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d015b6c2fbb5c383bf08@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f]
CPU: 1 PID: 17900 Comm: syz-executor.4 Not tainted 6.3.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:__lock_acquire+0x69/0x1f80 kernel/locking/lockdep.c:4926
Code: df 0f b6 04 10 84 c0 0f 85 fb 15 00 00 83 3d 41 b7 e9 0c 00 0f 84 a8 14 00 00 83 3d d0 29 75 0b 00 74 2b 4c 89 f0 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 29 04 76 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc900167a7b00 EFLAGS: 00010006
RAX: 0000000000000009 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000048
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88802b86ba80 R14: 0000000000000048 R15: 0000000000000001
FS: 00007f37ad035700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37ad014718 CR3: 00000000912ec000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
lock_acquire+0x1e1/0x520 kernel/locking/lockdep.c:5669
__raw_write_lock include/linux/rwlock_api_smp.h:209 [inline]
_raw_write_lock+0x2e/0x40 kernel/locking/spinlock.c:300
__drop_extent_tree+0x3ac/0x660 fs/f2fs/extent_cache.c:1192
f2fs_drop_extent_tree+0x17/0x30 fs/f2fs/extent_cache.c:1208
f2fs_insert_range+0x2d5/0x3c0 fs/f2fs/file.c:1664
f2fs_fallocate+0x4e4/0x6d0 fs/f2fs/file.c:1838
vfs_fallocate+0x54b/0x6b0 fs/open.c:324
ksys_fallocate fs/open.c:347 [inline]
__do_sys_fallocate fs/open.c:355 [inline]
__se_sys_fallocate fs/open.c:353 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f37ac28c0f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f37ad035168 EFLAGS: 00000246
ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f37ac3ac120 RCX: 00007f37ac28c0f9
RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000005
RBP: 00007f37ac2e7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000ff8000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff1081525f R14: 00007f37ad035300 R15: 0000000000022000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x69/0x1f80 kernel/locking/lockdep.c:4926
Code: df 0f b6 04 10 84 c0 0f 85 fb 15 00 00 83 3d 41 b7 e9 0c 00 0f 84 a8 14 00 00 83 3d d0 29 75 0b 00 74 2b 4c 89 f0 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 29 04 76 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc900167a7b00 EFLAGS: 00010006
RAX: 0000000000000009 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000048
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88802b86ba80 R14: 0000000000000048 R15: 0000000000000001
FS: 00007f37ad035700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37ad014718 CR3: 00000000912ec000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: df 0f fisttps (%rdi)
2: b6 04 mov $0x4,%dh
4: 10 84 c0 0f 85 fb 15 adc %al,0x15fb850f(%rax,%rax,8)
b: 00 00 add %al,(%rax)
d: 83 3d 41 b7 e9 0c 00 cmpl $0x0,0xce9b741(%rip) # 0xce9b755
14: 0f 84 a8 14 00 00 je 0x14c2
1a: 83 3d d0 29 75 0b 00 cmpl $0x0,0xb7529d0(%rip) # 0xb7529f1
21: 74 2b je 0x4e
23: 4c 89 f0 mov %r14,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) <-- trapping instruction
2e: 74 12 je 0x42
30: 4c 89 f7 mov %r14,%rdi
33: e8 29 04 76 00 callq 0x760461
38: 48 rex.W
39: ba 00 00 00 00 mov $0x0,%edx
3e: 00 fc add %bh,%ah
---
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.
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WARNING: multiple messages have this Message-ID (diff)
From: syzbot <syzbot+d015b6c2fbb5c383bf08@syzkaller.appspotmail.com>
To: chao@kernel.org, jaegeuk@kernel.org,
linux-f2fs-devel@lists.sourceforge.net,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
syzkaller-bugs@googlegroups.com
Subject: [syzbot] [f2fs?] general protection fault in __drop_extent_tree
Date: Mon, 10 Apr 2023 23:54:45 -0700 [thread overview]
Message-ID: <0000000000007c47b505f909f71d@google.com> (raw)
Hello,
syzbot found the following issue on:
HEAD commit: 7e364e56293b Linux 6.3-rc5
git tree: upstream
console output: https://syzkaller.appspot.com/x/log.txt?x=1666b8f1c80000
kernel config: https://syzkaller.appspot.com/x/.config?x=d9a438ce47536f0c
dashboard link: https://syzkaller.appspot.com/bug?extid=d015b6c2fbb5c383bf08
compiler: Debian clang version 15.0.7, GNU ld (GNU Binutils for Debian) 2.35.2
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/54c56bddacf4/disk-7e364e56.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/447e5d1af596/vmlinux-7e364e56.xz
kernel image: https://storage.googleapis.com/syzbot-assets/3e2d1545e7be/bzImage-7e364e56.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+d015b6c2fbb5c383bf08@syzkaller.appspotmail.com
general protection fault, probably for non-canonical address 0xdffffc0000000009: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000048-0x000000000000004f]
CPU: 1 PID: 17900 Comm: syz-executor.4 Not tainted 6.3.0-rc5-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
RIP: 0010:__lock_acquire+0x69/0x1f80 kernel/locking/lockdep.c:4926
Code: df 0f b6 04 10 84 c0 0f 85 fb 15 00 00 83 3d 41 b7 e9 0c 00 0f 84 a8 14 00 00 83 3d d0 29 75 0b 00 74 2b 4c 89 f0 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 29 04 76 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc900167a7b00 EFLAGS: 00010006
RAX: 0000000000000009 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000048
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88802b86ba80 R14: 0000000000000048 R15: 0000000000000001
FS: 00007f37ad035700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37ad014718 CR3: 00000000912ec000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
lock_acquire+0x1e1/0x520 kernel/locking/lockdep.c:5669
__raw_write_lock include/linux/rwlock_api_smp.h:209 [inline]
_raw_write_lock+0x2e/0x40 kernel/locking/spinlock.c:300
__drop_extent_tree+0x3ac/0x660 fs/f2fs/extent_cache.c:1192
f2fs_drop_extent_tree+0x17/0x30 fs/f2fs/extent_cache.c:1208
f2fs_insert_range+0x2d5/0x3c0 fs/f2fs/file.c:1664
f2fs_fallocate+0x4e4/0x6d0 fs/f2fs/file.c:1838
vfs_fallocate+0x54b/0x6b0 fs/open.c:324
ksys_fallocate fs/open.c:347 [inline]
__do_sys_fallocate fs/open.c:355 [inline]
__se_sys_fallocate fs/open.c:353 [inline]
__x64_sys_fallocate+0xbd/0x100 fs/open.c:353
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f37ac28c0f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f37ad035168 EFLAGS: 00000246
ORIG_RAX: 000000000000011d
RAX: ffffffffffffffda RBX: 00007f37ac3ac120 RCX: 00007f37ac28c0f9
RDX: 0000000000000000 RSI: 0000000000000020 RDI: 0000000000000005
RBP: 00007f37ac2e7b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000ff8000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff1081525f R14: 00007f37ad035300 R15: 0000000000022000
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:__lock_acquire+0x69/0x1f80 kernel/locking/lockdep.c:4926
Code: df 0f b6 04 10 84 c0 0f 85 fb 15 00 00 83 3d 41 b7 e9 0c 00 0f 84 a8 14 00 00 83 3d d0 29 75 0b 00 74 2b 4c 89 f0 48 c1 e8 03 <80> 3c 10 00 74 12 4c 89 f7 e8 29 04 76 00 48 ba 00 00 00 00 00 fc
RSP: 0018:ffffc900167a7b00 EFLAGS: 00010006
RAX: 0000000000000009 RBX: 0000000000000000 RCX: 0000000000000000
RDX: dffffc0000000000 RSI: 0000000000000000 RDI: 0000000000000048
RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000000
R13: ffff88802b86ba80 R14: 0000000000000048 R15: 0000000000000001
FS: 00007f37ad035700(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f37ad014718 CR3: 00000000912ec000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
----------------
Code disassembly (best guess):
0: df 0f fisttps (%rdi)
2: b6 04 mov $0x4,%dh
4: 10 84 c0 0f 85 fb 15 adc %al,0x15fb850f(%rax,%rax,8)
b: 00 00 add %al,(%rax)
d: 83 3d 41 b7 e9 0c 00 cmpl $0x0,0xce9b741(%rip) # 0xce9b755
14: 0f 84 a8 14 00 00 je 0x14c2
1a: 83 3d d0 29 75 0b 00 cmpl $0x0,0xb7529d0(%rip) # 0xb7529f1
21: 74 2b je 0x4e
23: 4c 89 f0 mov %r14,%rax
26: 48 c1 e8 03 shr $0x3,%rax
* 2a: 80 3c 10 00 cmpb $0x0,(%rax,%rdx,1) <-- trapping instruction
2e: 74 12 je 0x42
30: 4c 89 f7 mov %r14,%rdi
33: e8 29 04 76 00 callq 0x760461
38: 48 rex.W
39: ba 00 00 00 00 mov $0x0,%edx
3e: 00 fc add %bh,%ah
---
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.
next reply other threads:[~2023-04-11 6:54 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-04-11 6:54 syzbot [this message]
2023-04-11 6:54 ` [syzbot] [f2fs?] general protection fault in __drop_extent_tree syzbot
2023-05-20 16:55 ` [f2fs-dev] " syzbot
2023-05-20 16:55 ` syzbot
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