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general protection fault in truncate_inode_pages_final (2)

Status: upstream: reported syz repro on 2025/03/04 20:02
Bug presence: origin:upstream
[Documentation on labels]
Reported-by: syzbot+709226ed7064f9149174@syzkaller.appspotmail.com
First crash: 116d, last: 49d
▶ ▼ Bug presence (1)
Date Name Commit Repro Result
2025/05/12 upstream (ToT) 82f2b0b97b36 C [report] KASAN: out-of-bounds Write in end_buffer_read_sync
▶ ▼ Similar bugs (4)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 general protection fault in truncate_inode_pages_final 1 270d 270d 0/3 auto-obsoleted due to no activity on 2025/01/09 13:28
upstream BUG: unable to handle kernel NULL pointer dereference in truncate_inode_pages_final ntfs3 1 1005d 1001d 0/29 auto-obsoleted due to no activity on 2023/01/25 10:14
linux-6.1 UBSAN: array-index-out-of-bounds in truncate_inode_pages_final origin:upstream missing-backport C inconclusive 12 322d 714d 0/3 upstream: reported C repro on 2023/07/15 18:53
upstream UBSAN: array-index-out-of-bounds in truncate_inode_pages_final ntfs3 C 12 324d 720d 0/29 auto-obsoleted due to no activity on 2024/11/17 01:41
▶ ▼ Last patch testing requests (1)
Created Duration User Patch Repo Result
2025/05/27 05:12 16m retest repro linux-5.15.y OK log

Sample crash report:
loop3: detected capacity change from 0 to 4096
ntfs3: loop3: Different NTFS' sector size (2048) and media sector size (512)
general protection fault, probably for non-canonical address 0x5d4a98208199608b: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 4903 Comm: syz.3.253 Not tainted 5.15.182-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/19/2025
RIP: 0010:trace_hardirqs_on+0x66/0x80 kernel/trace/trace_preemptirq.c:49
Code: ff eb 18 e8 ac e1 f9 ff eb 1c e8 a5 e1 f9 ff 48 8b 7c 24 08 31 f6 e8 29 00 00 00 65 c7 05 36 56 85 7e 00 00 00 00 e8 d9 d0 dd <ff> 48 8b 7c 24 08 5b e9 9e 50 23 08 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc9000bfdf9c8 EFLAGS: 00010046
RAX: 5d4a982081996100 RBX: 0000000000000000 RCX: 5d4a982081996100
RDX: dffffc0000000000 RSI: ffffffff8a0b2260 RDI: ffffffff8a59a2c0
RBP: ffffc9000bfdfb50 R08: dffffc0000000000 R09: fffffbfff1ff343e
R10: fffffbfff1ff343e R11: 1ffffffff1ff343d R12: dffffc0000000000
R13: ffff88805bdf62b8 R14: ffff88805bdf6460 R15: ffff88805bdf6400
FS:  00007fb6028f76c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f50fdf55000 CR3: 000000001fbcf000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __raw_spin_unlock_irq include/linux/spinlock_api_smp.h:168 [inline]
 _raw_spin_unlock_irq+0x1f/0x40 kernel/locking/spinlock.c:202
 spin_unlock_irq include/linux/spinlock.h:413 [inline]
 truncate_inode_pages_final+0x66/0x90 mm/truncate.c:457
 ntfs_evict_inode+0x18/0xb0 fs/ntfs3/inode.c:1781
 evict+0x485/0x870 fs/inode.c:647
 ntfs_fill_super+0x355c/0x3c10 fs/ntfs3/super.c:1185
 get_tree_bdev+0x3f1/0x610 fs/super.c:1325
 vfs_get_tree+0x88/0x270 fs/super.c:1530
 do_new_mount+0x24a/0xa40 fs/namespace.c:3013
 do_mount fs/namespace.c:3356 [inline]
 __do_sys_mount fs/namespace.c:3564 [inline]
 __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3541
 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: 0033:0x7fb60368910a
Code: d8 64 89 02 48 c7 c0 ff ff ff ff eb a6 e8 de 1a 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 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb6028f6e68 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5
RAX: ffffffffffffffda RBX: 00007fb6028f6ef0 RCX: 00007fb60368910a
RDX: 000020000001f340 RSI: 0000200000000040 RDI: 00007fb6028f6eb0
RBP: 000020000001f340 R08: 00007fb6028f6ef0 R09: 0000000000000890
R10: 0000000000000890 R11: 0000000000000246 R12: 0000200000000040
R13: 00007fb6028f6eb0 R14: 000000000001f331 R15: 0000200000000000
 </TASK>
Modules linked in:
---[ end trace b414d9f09ade5191 ]---
RIP: 0010:trace_hardirqs_on+0x66/0x80 kernel/trace/trace_preemptirq.c:49
Code: ff eb 18 e8 ac e1 f9 ff eb 1c e8 a5 e1 f9 ff 48 8b 7c 24 08 31 f6 e8 29 00 00 00 65 c7 05 36 56 85 7e 00 00 00 00 e8 d9 d0 dd <ff> 48 8b 7c 24 08 5b e9 9e 50 23 08 66 2e 0f 1f 84 00 00 00 00 00
RSP: 0018:ffffc9000bfdf9c8 EFLAGS: 00010046
RAX: 5d4a982081996100 RBX: 0000000000000000 RCX: 5d4a982081996100
RDX: dffffc0000000000 RSI: ffffffff8a0b2260 RDI: ffffffff8a59a2c0
RBP: ffffc9000bfdfb50 R08: dffffc0000000000 R09: fffffbfff1ff343e
R10: fffffbfff1ff343e R11: 1ffffffff1ff343d R12: dffffc0000000000
R13: ffff88805bdf62b8 R14: ffff88805bdf6460 R15: ffff88805bdf6400
FS:  00007fb6028f76c0(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f50fdf55000 CR3: 000000001fbcf000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2025/05/10 19:23 linux-5.15.y 3b8db0e4f263 77908e5f .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro #1] [mounted in repro #2 (corrupt fs)] ci2-linux-5-15-kasan general protection fault in truncate_inode_pages_final
2025/05/09 02:29 linux-5.15.y 16fdf2c7111b bb813bcc .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan general protection fault in truncate_inode_pages_final
2025/03/04 20:01 linux-5.15.y c16c81c81336 c3901742 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-5-15-kasan general protection fault in truncate_inode_pages_final
* Struck through repros no longer work on HEAD.