[v5.15] kernel BUG in evict
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syzbot
Apr 20, 2024, 8:09:28 AM (14 days ago) Apr 20
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: c52b9710c83d Linux 5.15.156
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=102fd557180000
kernel config: https://syzkaller.appspot.com/x/.config?x=567b6ddc38438433
dashboard link: https://syzkaller.appspot.com/bug?extid=2d4607167a06f0cd5d67
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/1bd4b9969373/disk-c52b9710.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/10509e89bd25/vmlinux-c52b9710.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a623a4c52eb5/bzImage-c52b9710.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2d4607...@syzkaller.appspotmail.com
NILFS (loop0): nilfs_palloc_commit_free_entry (ino=6): entry number 6 already freed
------------[ cut here ]------------
kernel BUG at fs/inode.c:599!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3524 Comm: syz-executor.0 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:evict+0x615/0x620 fs/inode.c:599
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 03 00 ed ff e9 d1 fc ff ff e8 59 3b a3 ff 0f 0b e8 52 3b a3 ff 0f 0b e8 4b 3b a3 ff <0f> 0b e8 44 3b a3 ff 0f 0b 66 90 41 56 53 49 89 fe e8 35 3b a3 ff
RSP: 0018:ffffc90002ea7ae8 EFLAGS: 00010293
RAX: ffffffff81dd2195 RBX: 0000000000000064 RCX: ffff8880246fd940
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff88805f065528 R08: ffffffff81dd2026 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88805f0654c8
R13: ffff88805f065528 R14: dffffc0000000000 R15: ffff88805f0654a0
FS: 0000555555a8f480(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefcd7ad6e4 CR3: 0000000062134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
nilfs_put_root+0x93/0xb0 fs/nilfs2/the_nilfs.c:911
nilfs_segctor_destroy fs/nilfs2/segment.c:2789 [inline]
nilfs_detach_log_writer+0x8b8/0xbd0 fs/nilfs2/segment.c:2852
nilfs_put_super+0x49/0x150 fs/nilfs2/super.c:498
generic_shutdown_super+0x136/0x2c0 fs/super.c:475
kill_block_super+0x7a/0xe0 fs/super.c:1414
deactivate_locked_super+0xa0/0x110 fs/super.c:335
cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
task_work_run+0x129/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f185cc301d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe0bba9828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f185cc301d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe0bba98e0
RBP: 00007ffe0bba98e0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe0bbaa9a0
R13: 00007f185cc7a3b9 R14: 0000000000019c4d R15: 0000000000000005
</TASK>
Modules linked in:
---[ end trace 6ee28e9fcf68502f ]---
RIP: 0010:evict+0x615/0x620 fs/inode.c:599
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 03 00 ed ff e9 d1 fc ff ff e8 59 3b a3 ff 0f 0b e8 52 3b a3 ff 0f 0b e8 4b 3b a3 ff <0f> 0b e8 44 3b a3 ff 0f 0b 66 90 41 56 53 49 89 fe e8 35 3b a3 ff
RSP: 0018:ffffc90002ea7ae8 EFLAGS: 00010293
RAX: ffffffff81dd2195 RBX: 0000000000000064 RCX: ffff8880246fd940
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff88805f065528 R08: ffffffff81dd2026 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88805f0654c8
R13: ffff88805f065528 R14: dffffc0000000000 R15: ffff88805f0654a0
FS: 0000555555a8f480(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefcd7ad6e4 CR3: 0000000062134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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: c52b9710c83d Linux 5.15.156
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=102fd557180000
kernel config: https://syzkaller.appspot.com/x/.config?x=567b6ddc38438433
dashboard link: https://syzkaller.appspot.com/bug?extid=2d4607167a06f0cd5d67
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/1bd4b9969373/disk-c52b9710.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/10509e89bd25/vmlinux-c52b9710.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a623a4c52eb5/bzImage-c52b9710.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2d4607...@syzkaller.appspotmail.com
NILFS (loop0): nilfs_palloc_commit_free_entry (ino=6): entry number 6 already freed
------------[ cut here ]------------
kernel BUG at fs/inode.c:599!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 3524 Comm: syz-executor.0 Not tainted 5.15.156-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:evict+0x615/0x620 fs/inode.c:599
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 03 00 ed ff e9 d1 fc ff ff e8 59 3b a3 ff 0f 0b e8 52 3b a3 ff 0f 0b e8 4b 3b a3 ff <0f> 0b e8 44 3b a3 ff 0f 0b 66 90 41 56 53 49 89 fe e8 35 3b a3 ff
RSP: 0018:ffffc90002ea7ae8 EFLAGS: 00010293
RAX: ffffffff81dd2195 RBX: 0000000000000064 RCX: ffff8880246fd940
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff88805f065528 R08: ffffffff81dd2026 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88805f0654c8
R13: ffff88805f065528 R14: dffffc0000000000 R15: ffff88805f0654a0
FS: 0000555555a8f480(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefcd7ad6e4 CR3: 0000000062134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
nilfs_put_root+0x93/0xb0 fs/nilfs2/the_nilfs.c:911
nilfs_segctor_destroy fs/nilfs2/segment.c:2789 [inline]
nilfs_detach_log_writer+0x8b8/0xbd0 fs/nilfs2/segment.c:2852
nilfs_put_super+0x49/0x150 fs/nilfs2/super.c:498
generic_shutdown_super+0x136/0x2c0 fs/super.c:475
kill_block_super+0x7a/0xe0 fs/super.c:1414
deactivate_locked_super+0xa0/0x110 fs/super.c:335
cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
task_work_run+0x129/0x1a0 kernel/task_work.c:164
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x106/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x5d/0x240 kernel/entry/common.c:307
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f185cc301d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007ffe0bba9828 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f185cc301d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffe0bba98e0
RBP: 00007ffe0bba98e0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe0bbaa9a0
R13: 00007f185cc7a3b9 R14: 0000000000019c4d R15: 0000000000000005
</TASK>
Modules linked in:
---[ end trace 6ee28e9fcf68502f ]---
RIP: 0010:evict+0x615/0x620 fs/inode.c:599
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 03 00 ed ff e9 d1 fc ff ff e8 59 3b a3 ff 0f 0b e8 52 3b a3 ff 0f 0b e8 4b 3b a3 ff <0f> 0b e8 44 3b a3 ff 0f 0b 66 90 41 56 53 49 89 fe e8 35 3b a3 ff
RSP: 0018:ffffc90002ea7ae8 EFLAGS: 00010293
RAX: ffffffff81dd2195 RBX: 0000000000000064 RCX: ffff8880246fd940
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff88805f065528 R08: ffffffff81dd2026 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88805f0654c8
R13: ffff88805f065528 R14: dffffc0000000000 R15: ffff88805f0654a0
FS: 0000555555a8f480(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fefcd7ad6e4 CR3: 0000000062134000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
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
Apr 20, 2024, 8:22:19 AM (14 days ago) Apr 20
to syzkaller...@googlegroups.com
Hello,
syzbot found the following issue on:
HEAD commit: 6741e066ec76 Linux 6.1.87
syzbot found the following issue on:
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=10e20e6f180000
kernel config: https://syzkaller.appspot.com/x/.config?x=3fc2f61bd0ae457
dashboard link: https://syzkaller.appspot.com/bug?extid=33fde3715ff1561d9688
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/b606a22ddf4b/disk-6741e066.raw.xz
Unfortunately, I don't have any reproducer for this issue yet.
Downloadable assets:
vmlinux: https://storage.googleapis.com/syzbot-assets/e31c21737449/vmlinux-6741e066.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ee0cb8c049e9/bzImage-6741e066.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
NILFS (loop0): nilfs_palloc_commit_free_entry (ino=6): entry number 6 already freed
------------[ cut here ]------------
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 5054 Comm: syz-executor.0 Not tainted 6.1.87-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:evict+0x615/0x620 fs/inode.c:678
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 e3 61 e9 ff e9 d1 fc ff ff e8 b9 ea 91 ff 0f 0b e8 b2 ea 91 ff 0f 0b e8 ab ea 91 ff <0f> 0b e8 a4 ea 91 ff 0f 0b 66 90 41 56 53 49 89 fe e8 95 ea 91 ff
RSP: 0018:ffffc900031afa48 EFLAGS: 00010293
RAX: ffffffff81f8a4b5 RBX: 0000000000000064 RCX: ffff8880555c3b80
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff888070bf3520 R08: ffffffff81f8a346 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888070bf34c0
R13: ffff888070bf3520 R14: dffffc0000000000 R15: ffff888070bf3498
FS: 0000555556a55480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556a5e938 CR3: 000000001b668000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
nilfs_put_root+0x93/0xb0 fs/nilfs2/the_nilfs.c:910
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
nilfs_segctor_destroy fs/nilfs2/segment.c:2787 [inline]
nilfs_detach_log_writer+0x8b6/0xbd0 fs/nilfs2/segment.c:2850
nilfs_put_super+0x49/0x150 fs/nilfs2/super.c:498
generic_shutdown_super+0x130/0x340 fs/super.c:501
kill_block_super+0x7a/0xe0 fs/super.c:1459
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:303
do_syscall_64+0x47/0xb0 arch/x86/entry/common.c:87
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f89c9c7f1d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff1c8b70b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f89c9c7f1d7
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fff1c8b7170
RBP: 00007fff1c8b7170 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff1c8b8230
R13: 00007f89c9cc93b9 R14: 000000000001fe22 R15: 0000000000000004
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:evict+0x615/0x620 fs/inode.c:678
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 e3 61 e9 ff e9 d1 fc ff ff e8 b9 ea 91 ff 0f 0b e8 b2 ea 91 ff 0f 0b e8 ab ea 91 ff <0f> 0b e8 a4 ea 91 ff 0f 0b 66 90 41 56 53 49 89 fe e8 95 ea 91 ff
RSP: 0018:ffffc900031afa48 EFLAGS: 00010293
RAX: ffffffff81f8a4b5 RBX: 0000000000000064 RCX: ffff8880555c3b80
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff888070bf3520 R08: ffffffff81f8a346 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff888070bf34c0
R13: ffff888070bf3520 R14: dffffc0000000000 R15: ffff888070bf3498
FS: 0000555556a55480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556a5e938 CR3: 000000001b668000 CR4: 00000000003506e0
syzbot
Apr 20, 2024, 8:37:25 AM (14 days ago) Apr 20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: c52b9710c83d Linux 5.15.156
git tree: linux-5.15.y
console output: https://syzkaller.appspot.com/x/log.txt?x=123c9c27180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13163bab180000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/1bd4b9969373/disk-c52b9710.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/10509e89bd25/vmlinux-c52b9710.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a623a4c52eb5/bzImage-c52b9710.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/f9d6ec78694f/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2d4607...@syzkaller.appspotmail.com
NILFS (loop0): nilfs_palloc_commit_free_entry (ino=6): entry number 6 already freed
------------[ cut here ]------------
kernel BUG at fs/inode.c:599!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3501 Comm: syz-executor365 Not tainted 5.15.156-syzkaller #0
RAX: ffffffff81dd2195 RBX: 0000000000000064 RCX: ffff888024c7d940
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88807505a7f0
R13: ffff88807505a850 R14: dffffc0000000000 R15: ffff88807505a7c8
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
do_exit+0x6a3/0x2480 kernel/exit.c:872
do_group_exit+0x144/0x310 kernel/exit.c:994
__do_sys_exit_group kernel/exit.c:1005 [inline]
__se_sys_exit_group kernel/exit.c:1003 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1003
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f564a6e5789
Code: Unable to access opcode bytes at RIP 0x7f564a6e575f.
RSP: 002b:00007ffcacf6d158 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f564a6e5789
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f564a7612b0 R08: ffffffffffffffb8 R09: 00007ffcacf6d230
R10: 00007ffcacf6d080 R11: 0000000000000246 R12: 00007f564a7612b0
R13: 0000000000000000 R14: 00007f564a762020 R15: 00007f564a6b3cc0
</TASK>
Modules linked in:
---[ end trace d4960359a0e9d933 ]---
RAX: ffffffff81dd2195 RBX: 0000000000000064 RCX: ffff888024c7d940
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88807505a7f0
R13: ffff88807505a850 R14: dffffc0000000000 R15: ffff88807505a7c8
FS: 0000000000000000(0000) GS:ffff8880b9b00000(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: c52b9710c83d Linux 5.15.156
git tree: linux-5.15.y
kernel config: https://syzkaller.appspot.com/x/.config?x=567b6ddc38438433
dashboard link: https://syzkaller.appspot.com/bug?extid=2d4607167a06f0cd5d67
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15abf520980000
dashboard link: https://syzkaller.appspot.com/bug?extid=2d4607167a06f0cd5d67
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13163bab180000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/1bd4b9969373/disk-c52b9710.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/10509e89bd25/vmlinux-c52b9710.xz
kernel image: https://storage.googleapis.com/syzbot-assets/a623a4c52eb5/bzImage-c52b9710.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2d4607...@syzkaller.appspotmail.com
NILFS (loop0): nilfs_palloc_commit_free_entry (ino=6): entry number 6 already freed
------------[ cut here ]------------
kernel BUG at fs/inode.c:599!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:evict+0x615/0x620 fs/inode.c:599
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 03 00 ed ff e9 d1 fc ff ff e8 59 3b a3 ff 0f 0b e8 52 3b a3 ff 0f 0b e8 4b 3b a3 ff <0f> 0b e8 44 3b a3 ff 0f 0b 66 90 41 56 53 49 89 fe e8 35 3b a3 ff
RSP: 0018:ffffc90002f27988 EFLAGS: 00010293
RIP: 0010:evict+0x615/0x620 fs/inode.c:599
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 03 00 ed ff e9 d1 fc ff ff e8 59 3b a3 ff 0f 0b e8 52 3b a3 ff 0f 0b e8 4b 3b a3 ff <0f> 0b e8 44 3b a3 ff 0f 0b 66 90 41 56 53 49 89 fe e8 35 3b a3 ff
RAX: ffffffff81dd2195 RBX: 0000000000000064 RCX: ffff888024c7d940
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff88807505a850 R08: ffffffff81dd2026 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88807505a7f0
R13: ffff88807505a850 R14: dffffc0000000000 R15: ffff88807505a7c8
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564d12298ae8 CR3: 0000000021c0d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
nilfs_put_root+0x93/0xb0 fs/nilfs2/the_nilfs.c:911
nilfs_segctor_destroy fs/nilfs2/segment.c:2789 [inline]
nilfs_detach_log_writer+0x8b8/0xbd0 fs/nilfs2/segment.c:2852
nilfs_put_super+0x49/0x150 fs/nilfs2/super.c:498
generic_shutdown_super+0x136/0x2c0 fs/super.c:475
kill_block_super+0x7a/0xe0 fs/super.c:1414
deactivate_locked_super+0xa0/0x110 fs/super.c:335
cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
task_work_run+0x129/0x1a0 kernel/task_work.c:164
exit_task_work include/linux/task_work.h:32 [inline]
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
nilfs_put_root+0x93/0xb0 fs/nilfs2/the_nilfs.c:911
nilfs_segctor_destroy fs/nilfs2/segment.c:2789 [inline]
nilfs_detach_log_writer+0x8b8/0xbd0 fs/nilfs2/segment.c:2852
nilfs_put_super+0x49/0x150 fs/nilfs2/super.c:498
generic_shutdown_super+0x136/0x2c0 fs/super.c:475
kill_block_super+0x7a/0xe0 fs/super.c:1414
deactivate_locked_super+0xa0/0x110 fs/super.c:335
cleanup_mnt+0x44e/0x500 fs/namespace.c:1143
task_work_run+0x129/0x1a0 kernel/task_work.c:164
do_exit+0x6a3/0x2480 kernel/exit.c:872
do_group_exit+0x144/0x310 kernel/exit.c:994
__do_sys_exit_group kernel/exit.c:1005 [inline]
__se_sys_exit_group kernel/exit.c:1003 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1003
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f564a6e5789
Code: Unable to access opcode bytes at RIP 0x7f564a6e575f.
RSP: 002b:00007ffcacf6d158 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f564a6e5789
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f564a7612b0 R08: ffffffffffffffb8 R09: 00007ffcacf6d230
R10: 00007ffcacf6d080 R11: 0000000000000246 R12: 00007f564a7612b0
R13: 0000000000000000 R14: 00007f564a762020 R15: 00007f564a6b3cc0
</TASK>
Modules linked in:
---[ end trace d4960359a0e9d933 ]---
RIP: 0010:evict+0x615/0x620 fs/inode.c:599
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 03 00 ed ff e9 d1 fc ff ff e8 59 3b a3 ff 0f 0b e8 52 3b a3 ff 0f 0b e8 4b 3b a3 ff <0f> 0b e8 44 3b a3 ff 0f 0b 66 90 41 56 53 49 89 fe e8 35 3b a3 ff
RSP: 0018:ffffc90002f27988 EFLAGS: 00010293
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 03 00 ed ff e9 d1 fc ff ff e8 59 3b a3 ff 0f 0b e8 52 3b a3 ff 0f 0b e8 4b 3b a3 ff <0f> 0b e8 44 3b a3 ff 0f 0b 66 90 41 56 53 49 89 fe e8 35 3b a3 ff
RAX: ffffffff81dd2195 RBX: 0000000000000064 RCX: ffff888024c7d940
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff88807505a850 R08: ffffffff81dd2026 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff88807505a7f0
R13: ffff88807505a850 R14: dffffc0000000000 R15: ffff88807505a7c8
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000564d12298ae8 CR3: 0000000021c0d000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
If you want syzbot to run the reproducer, reply with:
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
#syz test: git://repo/address.git branch-or-commit-hash
If you attach or paste a git patch, syzbot will apply it before testing.
syzbot
Apr 20, 2024, 12:29:25 PM (13 days ago) Apr 20
to syzkaller...@googlegroups.com
syzbot has found a reproducer for the following issue on:
HEAD commit: 6741e066ec76 Linux 6.1.87
git tree: linux-6.1.y
console output: https://syzkaller.appspot.com/x/log.txt?x=1592daf5180000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1392daf5180000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/b606a22ddf4b/disk-6741e066.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e31c21737449/vmlinux-6741e066.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ee0cb8c049e9/bzImage-6741e066.xz
mounted in repro: https://storage.googleapis.com/syzbot-assets/68e556ff676c/mount_0.gz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+33fde3...@syzkaller.appspotmail.com
loop0: detected capacity change from 0 to 2048
RAX: ffffffff81f8a4b5 RBX: 0000000000000064 RCX: ffff8880297c3b80
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8880704b27f0
R13: ffff8880704b2850 R14: dffffc0000000000 R15: ffff8880704b27c8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
do_exit+0xa73/0x26a0 kernel/exit.c:869
do_group_exit+0x202/0x2b0 kernel/exit.c:1019
__do_sys_exit_group kernel/exit.c:1030 [inline]
__se_sys_exit_group kernel/exit.c:1028 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1028
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f2306989789
Code: Unable to access opcode bytes at 0x7f230698975f.
RSP: 002b:00007ffc7132fa78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f2306989789
R10: 00007ffc7132f9a0 R11: 0000000000000246 R12: 00007f2306a052b0
R13: 0000000000000000 R14: 00007f2306a06020 R15: 00007f2306957cc0
RAX: ffffffff81f8a4b5 RBX: 0000000000000064 RCX: ffff8880297c3b80
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8880704b27f0
R13: ffff8880704b2850 R14: dffffc0000000000 R15: ffff8880704b27c8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
HEAD commit: 6741e066ec76 Linux 6.1.87
git tree: linux-6.1.y
kernel config: https://syzkaller.appspot.com/x/.config?x=3fc2f61bd0ae457
dashboard link: https://syzkaller.appspot.com/bug?extid=33fde3715ff1561d9688
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10c97880980000
dashboard link: https://syzkaller.appspot.com/bug?extid=33fde3715ff1561d9688
compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1392daf5180000
Downloadable assets:
disk image: https://storage.googleapis.com/syzbot-assets/b606a22ddf4b/disk-6741e066.raw.xz
vmlinux: https://storage.googleapis.com/syzbot-assets/e31c21737449/vmlinux-6741e066.xz
kernel image: https://storage.googleapis.com/syzbot-assets/ee0cb8c049e9/bzImage-6741e066.xz
IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+33fde3...@syzkaller.appspotmail.com
NILFS (loop0): nilfs_palloc_commit_free_entry (ino=6): entry number 6 already freed
------------[ cut here ]------------
kernel BUG at fs/inode.c:678!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 3542 Comm: syz-executor388 Not tainted 6.1.87-syzkaller #0
------------[ cut here ]------------
kernel BUG at fs/inode.c:678!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024
RIP: 0010:evict+0x615/0x620 fs/inode.c:678
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 e3 61 e9 ff e9 d1 fc ff ff e8 b9 ea 91 ff 0f 0b e8 b2 ea 91 ff 0f 0b e8 ab ea 91 ff <0f> 0b e8 a4 ea 91 ff 0f 0b 66 90 41 56 53 49 89 fe e8 95 ea 91 ff
RSP: 0018:ffffc90003a0f8c8 EFLAGS: 00010293
RIP: 0010:evict+0x615/0x620 fs/inode.c:678
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 e3 61 e9 ff e9 d1 fc ff ff e8 b9 ea 91 ff 0f 0b e8 b2 ea 91 ff 0f 0b e8 ab ea 91 ff <0f> 0b e8 a4 ea 91 ff 0f 0b 66 90 41 56 53 49 89 fe e8 95 ea 91 ff
RAX: ffffffff81f8a4b5 RBX: 0000000000000064 RCX: ffff8880297c3b80
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff8880704b2850 R08: ffffffff81f8a346 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8880704b27f0
R13: ffff8880704b2850 R14: dffffc0000000000 R15: ffff8880704b27c8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd978e4d08 CR3: 0000000021dc0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
nilfs_put_root+0x93/0xb0 fs/nilfs2/the_nilfs.c:910
nilfs_segctor_destroy fs/nilfs2/segment.c:2787 [inline]
nilfs_detach_log_writer+0x8b6/0xbd0 fs/nilfs2/segment.c:2850
nilfs_put_super+0x49/0x150 fs/nilfs2/super.c:498
generic_shutdown_super+0x130/0x340 fs/super.c:501
kill_block_super+0x7a/0xe0 fs/super.c:1459
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
exit_task_work include/linux/task_work.h:38 [inline]
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
nilfs_put_root+0x93/0xb0 fs/nilfs2/the_nilfs.c:910
nilfs_segctor_destroy fs/nilfs2/segment.c:2787 [inline]
nilfs_detach_log_writer+0x8b6/0xbd0 fs/nilfs2/segment.c:2850
nilfs_put_super+0x49/0x150 fs/nilfs2/super.c:498
generic_shutdown_super+0x130/0x340 fs/super.c:501
kill_block_super+0x7a/0xe0 fs/super.c:1459
deactivate_locked_super+0xa0/0x110 fs/super.c:332
cleanup_mnt+0x490/0x520 fs/namespace.c:1186
task_work_run+0x246/0x300 kernel/task_work.c:179
do_exit+0xa73/0x26a0 kernel/exit.c:869
do_group_exit+0x202/0x2b0 kernel/exit.c:1019
__do_sys_exit_group kernel/exit.c:1030 [inline]
__se_sys_exit_group kernel/exit.c:1028 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1028
do_syscall_x64 arch/x86/entry/common.c:51 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:81
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f2306989789
Code: Unable to access opcode bytes at 0x7f230698975f.
RSP: 002b:00007ffc7132fa78 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f2306989789
RDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000001
RBP: 00007f2306a052b0 R08: ffffffffffffffb8 R09: 00007ffc7132fb50
R10: 00007ffc7132f9a0 R11: 0000000000000246 R12: 00007f2306a052b0
R13: 0000000000000000 R14: 00007f2306a06020 R15: 00007f2306957cc0
</TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:evict+0x615/0x620 fs/inode.c:678
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 e3 61 e9 ff e9 d1 fc ff ff e8 b9 ea 91 ff 0f 0b e8 b2 ea 91 ff 0f 0b e8 ab ea 91 ff <0f> 0b e8 a4 ea 91 ff 0f 0b 66 90 41 56 53 49 89 fe e8 95 ea 91 ff
RSP: 0018:ffffc90003a0f8c8 EFLAGS: 00010293
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:evict+0x615/0x620 fs/inode.c:678
Code: fe c1 38 c1 0f 8c de fc ff ff 4c 89 ff e8 e3 61 e9 ff e9 d1 fc ff ff e8 b9 ea 91 ff 0f 0b e8 b2 ea 91 ff 0f 0b e8 ab ea 91 ff <0f> 0b e8 a4 ea 91 ff 0f 0b 66 90 41 56 53 49 89 fe e8 95 ea 91 ff
RAX: ffffffff81f8a4b5 RBX: 0000000000000064 RCX: ffff8880297c3b80
RDX: 0000000000000000 RSI: 0000000000000064 RDI: 0000000000000060
RBP: ffff8880704b2850 R08: ffffffff81f8a346 R09: 0000000000000003
R10: ffffffffffffffff R11: dffffc0000000001 R12: ffff8880704b27f0
R13: ffff8880704b2850 R14: dffffc0000000000 R15: ffff8880704b27c8
FS: 0000000000000000(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd978e4d08 CR3: 0000000021dc0000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
---
syzbot
May 2, 2024, 4:37:06 PM (yesterday) May 2
to syzkaller...@googlegroups.com
syzbot suspects this issue could be fixed by backporting the following commit:
commit 9b5a04ac3ad9898c4745cba46ea26de74ba56a8e
git tree: upstream
Author: Ryusuke Konishi <konishi...@gmail.com>
Date: Tue May 9 15:29:56 2023 +0000
nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=176f46a7180000
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
commit 9b5a04ac3ad9898c4745cba46ea26de74ba56a8e
git tree: upstream
Author: Ryusuke Konishi <konishi...@gmail.com>
Date: Tue May 9 15:29:56 2023 +0000
nilfs2: fix use-after-free bug of nilfs_root in nilfs_evict_inode()
bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=176f46a7180000
kernel config: https://syzkaller.appspot.com/x/.config?x=3fc2f61bd0ae457
dashboard link: https://syzkaller.appspot.com/bug?extid=33fde3715ff1561d9688
dashboard link: https://syzkaller.appspot.com/bug?extid=33fde3715ff1561d9688
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10c97880980000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1392daf5180000
Please keep in mind that other backports might be required as well.
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1392daf5180000
For information about bisection process see: https://goo.gl/tpsmEJ#bisection
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