WARNING: kmalloc bug in ntfs_load_attr

Date	Name	Commit	Repro	Result
2026/01/12	linux-5.15.y (ToT)	68efe5a6c16a	C	[report] WARNING: kmalloc bug in ntfs_load_attr_list
2026/01/12	upstream (ToT)	0f61b1860cc3	C	Didn't crash

Date

Name

Commit

Repro

Result

2026/01/12

linux-5.15.y (ToT)

68efe5a6c16a

[report] WARNING: kmalloc bug in ntfs_load_attr_list

2026/01/12

upstream (ToT)

0f61b1860cc3

Didn't crash

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-6.1	WARNING: kmalloc bug in ntfs_load_attr_list origin:lts-only	-1	C		inconclusive	1	601d	635d	0/3	upstream: reported C repro on 2024/04/18 16:36
upstream	WARNING: kmalloc bug in ntfs_load_attr_list ntfs3	-1	C	done	inconclusive	4	701d	753d	0/29	auto-obsoleted due to no activity on 2024/05/25 15:42

loop0: detected capacity change from 0 to 4096 ntfs3: loop0: Different NTFS' sector size (4096) and media sector size (512) ------------[ cut here ]------------ WARNING: CPU: 0 PID: 4319 at mm/util.c:630 kvmalloc_node+0x12b/0x130 mm/util.c:630 Modules linked in: CPU: 0 PID: 4319 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:kvmalloc_node+0x12b/0x130 mm/util.c:630 Code: 41 5f 5d c3 89 de 81 e6 00 20 00 00 31 ff e8 7c d5 d1 ff 81 e3 00 20 00 00 74 0a e8 0f d2 d1 ff 45 31 ff eb d3 e8 05 d2 d1 ff <0f> 0b eb f2 90 41 56 53 49 89 f6 48 89 fb e8 f2 d1 d1 ff 48 83 fb RSP: 0018:ffffc9000301f740 EFLAGS: 00010293 RAX: ffffffff81a5fa0b RBX: 0000000000000000 RCX: ffff88802831bb80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000ffffffff R08: 0000000000012cc0 R09: 00000000ffffffff R10: fffff52000603ebd R11: 1ffff92000603eb8 R12: 0000000000000000 R13: ffff8880236fa0b8 R14: 0000000100000000 R15: 0000000000000000 FS: 000055556e349500(0000) GS:ffff8880b9100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd7bb1f0000 CR3: 000000001e16b000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> kvmalloc include/linux/mm.h:816 [inline] ntfs_load_attr_list+0x11b/0x4f0 fs/ntfs3/attrlist.c:56 ntfs_read_mft fs/ntfs3/inode.c:180 [inline] ntfs_iget5+0x10c3/0x3670 fs/ntfs3/inode.c:526 ntfs_loadlog_and_replay+0x139/0x480 fs/ntfs3/fsntfs.c:272 ntfs_fill_super+0x20d4/0x3c10 fs/ntfs3/super.c:1013 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:3034 do_mount fs/namespace.c:3377 [inline] __do_sys_mount fs/namespace.c:3585 [inline] __se_sys_mount+0x2d6/0x3c0 fs/namespace.c:3562 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: 0033:0x7f7b542bfeea 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:00007ffed26d6ab8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007ffed26d6b40 RCX: 00007f7b542bfeea RDX: 0000200000000040 RSI: 00002000000000c0 RDI: 00007ffed26d6b00 RBP: 0000200000000040 R08: 00007ffed26d6b40 R09: 0000000000000005 R10: 0000000000000005 R11: 0000000000000246 R12: 00002000000000c0 R13: 00007ffed26d6b00 R14: 000000000001f23e R15: 0000200000000100 </TASK>

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/01/09 12:58	linux-5.15.y	68efe5a6c16a	d6526ea3	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-5-15-kasan	WARNING: kmalloc bug in ntfs_load_attr_list

Crashes (1):

Assets (help?)