syzbot


kernel BUG in set_blocksize

Status: auto-obsoleted due to no activity on 2024/06/05 17:38
Reported-by: syzbot+8ba2e4074becfc42a08e@syzkaller.appspotmail.com
First crash: 109d, last: 109d
Similar bugs (1)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
upstream kernel BUG in set_blocksize ext4 block syz error error 3 41d 135d 0/27 upstream: reported syz repro on 2024/02/01 09:14

Sample crash report:
 nilfs_fill_super+0xe9/0x660 fs/nilfs2/super.c:1078
 nilfs_mount+0x679/0x9a0 fs/nilfs2/super.c:1347
 legacy_get_tree+0xeb/0x180 fs/fs_context.c:632
 vfs_get_tree+0x88/0x270 fs/super.c:1562
 do_new_mount+0x2ba/0xb40 fs/namespace.c:3051
 do_mount fs/namespace.c:3394 [inline]
 __do_sys_mount fs/namespace.c:3602 [inline]
 __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3579
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
------------[ cut here ]------------
kernel BUG at mm/truncate.c:423!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 29802 Comm: syz-executor.2 Not tainted 6.1.79-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024
RIP: 0010:truncate_inode_pages_range+0x110a/0x1340 mm/truncate.c:423
Code: 00 00 48 c7 c7 10 2c 1d 8d 48 89 da e8 9f 3e a5 02 e9 e9 f5 ff ff e8 45 ae cc ff 4c 89 e7 48 c7 c6 00 2d f5 8a e8 36 59 0c 00 <0f> 0b e8 2f ae cc ff 4c 89 e7 48 c7 c6 20 2c f5 8a e8 20 59 0c 00
RSP: 0018:ffffc900033bf6c0 EFLAGS: 00010246
RAX: bb440468f19bd000 RBX: 000000000000007f RCX: ffffc900033bf503
RDX: 0000000000000002 RSI: ffffffff8aebfec0 RDI: ffffffff8b3d1040
RBP: ffffc900033bf8f0 R08: dffffc0000000000 R09: fffffbfff1ce68c6
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0000794f80
R13: ffffc900033bf778 R14: ffffc900033bf810 R15: 0000000000000003
FS:  00007f96e63ec6c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f2c561ad988 CR3: 0000000074a91000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kill_bdev block/bdev.c:76 [inline]
 set_blocksize+0x2d9/0x350 block/bdev.c:152
 sb_set_blocksize block/bdev.c:161 [inline]
 sb_min_blocksize+0xb7/0x170 block/bdev.c:177
 init_nilfs+0xbc/0x790 fs/nilfs2/the_nilfs.c:679
 nilfs_fill_super+0xe9/0x660 fs/nilfs2/super.c:1078
 nilfs_mount+0x679/0x9a0 fs/nilfs2/super.c:1347
 legacy_get_tree+0xeb/0x180 fs/fs_context.c:632
 vfs_get_tree+0x88/0x270 fs/super.c:1562
 do_new_mount+0x2ba/0xb40 fs/namespace.c:3051
 do_mount fs/namespace.c:3394 [inline]
 __do_sys_mount fs/namespace.c:3602 [inline]
 __se_sys_mount+0x2d5/0x3c0 fs/namespace.c:3579
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:81
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f96e567f4aa
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 09 00 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f96e63ebef8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007f96e63ebf80 RCX: 00007f96e567f4aa
RDX: 0000000020000ec0 RSI: 0000000020000f00 RDI: 00007f96e63ebf40
RBP: 0000000020000ec0 R08: 00007f96e63ebf80 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000020000f00
R13: 00007f96e63ebf40 R14: 0000000000000eb0 R15: 0000000020000f40
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:truncate_inode_pages_range+0x110a/0x1340 mm/truncate.c:423
Code: 00 00 48 c7 c7 10 2c 1d 8d 48 89 da e8 9f 3e a5 02 e9 e9 f5 ff ff e8 45 ae cc ff 4c 89 e7 48 c7 c6 00 2d f5 8a e8 36 59 0c 00 <0f> 0b e8 2f ae cc ff 4c 89 e7 48 c7 c6 20 2c f5 8a e8 20 59 0c 00
RSP: 0018:ffffc900033bf6c0 EFLAGS: 00010246
RAX: bb440468f19bd000 RBX: 000000000000007f RCX: ffffc900033bf503
RDX: 0000000000000002 RSI: ffffffff8aebfec0 RDI: ffffffff8b3d1040
RBP: ffffc900033bf8f0 R08: dffffc0000000000 R09: fffffbfff1ce68c6
R10: 0000000000000000 R11: dffffc0000000001 R12: ffffea0000794f80
R13: ffffc900033bf778 R14: ffffc900033bf810 R15: 0000000000000003
FS:  00007f96e63ec6c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055555595a788 CR3: 0000000074a91000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (1):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/02/26 17:37 linux-6.1.y 81e1dc2f7001 da36a36b .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan kernel BUG in set_blocksize
* Struck through repros no longer work on HEAD.