KASAN: vmalloc-out-of-bounds Read in gfs2_dump

Date	Name	Commit	Repro	Result
2025/07/30	upstream (ToT)	e8d780dcd957	C	[report] general protection fault in gfs2_dump_glock

Date

Name

Commit

Repro

Result

2025/07/30

upstream (ToT)

e8d780dcd957

[report] general protection fault in gfs2_dump_glock

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
linux-6.1	KASAN: stack-out-of-bounds Read in gfs2_dump_glock origin:upstream	17	C		error	45	203d	925d	0/3	upstream: reported C repro on 2023/05/02 11:39
upstream	KASAN: stack-out-of-bounds Read in gfs2_dump_glock gfs2	19	C	error		392	7d00h	557d	0/29	upstream: reported C repro on 2024/05/04 22:05
upstream	general protection fault in gfs2_dump_glock gfs2	17	C			25	994d	1395d	22/29	fixed on 2023/02/24 13:50
upstream	general protection fault in gfs2_dump_glock (2) gfs2	17	C	done	done	48	674d	982d	0/29	auto-obsoleted due to no activity on 2024/04/08 04:28

Created	Duration	User	Patch	Repo	Result
2025/10/19 01:34	2h46m	bisect fix		linux-6.6.y	OK (0) job log log
2025/09/14 03:59	3h03m	bisect fix		linux-6.6.y	OK (0) job log log

Created

Duration

User

Patch

Repo

Result

2025/10/19 01:34

2h46m

bisect fix

linux-6.6.y

OK (0) job log log

2025/09/14 03:59

3h03m

bisect fix

linux-6.6.y

OK (0) job log log

gfs2: fsid=syz:syz.s: H: s:UN f:tTeAnaEcHWs e:1936618791 p:0 [(ended)] 0x275d385b676e general protection fault, probably for non-canonical address 0xee85e98cadce4cb1: 0000 [#1] PREEMPT SMP KASAN KASAN: maybe wild-memory-access in range [0x742f6c656e726588-0x742f6c656e72658f] CPU: 0 PID: 6809 Comm: syz.0.226 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025 RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1500 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2306 [inline] RIP: 0010:gfs2_dump_glock+0xd5f/0x1920 fs/gfs2/glock.c:2422 Code: 60 91 ef 8a be 14 03 00 00 48 c7 c2 a0 91 ef 8a e8 96 e8 c7 fd 49 8d 5d 20 49 89 de 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 06 84 c0 0f 85 10 06 00 00 48 89 5c 24 38 0f b7 1b 89 RSP: 0018:ffffc900053df740 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 742f6c656e72658b RCX: ffff888024428000 RDX: 0000000000000000 RSI: ffffffff8afc6ae0 RDI: ffffffff8afc6aa0 RBP: ffffc900053dfa30 R08: dffffc0000000000 R09: 1ffffffff21b50a0 R10: dffffc0000000000 R11: fffffbfff21b50a1 R12: ffffffff839fc27f R13: 742f6c656e72656b R14: 0e85ed8cadce4cb1 R15: 0000000000000100 FS: 00007fba4da496c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fba4da49d58 CR3: 000000007f621000 CR4: 00000000003506f0 Call Trace: <TASK> gfs2_consist_inode_i+0xf5/0x110 fs/gfs2/util.c:446 gfs2_dirent_scan+0x525/0x650 fs/gfs2/dir.c:602 gfs2_dir_read+0x803/0x1790 fs/gfs2/dir.c:1599 gfs2_readdir+0x150/0x1b0 fs/gfs2/file.c:116 iterate_dir+0x1c2/0x580 fs/readdir.c:106 __do_sys_getdents fs/readdir.c:322 [inline] __se_sys_getdents+0xe9/0x260 fs/readdir.c:307 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7fba4cb8f6c9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fba4da49038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007fba4cde6090 RCX: 00007fba4cb8f6c9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 00007fba4cc11f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fba4cde6128 R14: 00007fba4cde6090 R15: 00007fff2984f728 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:pid_is_meaningful fs/gfs2/glock.c:1500 [inline] RIP: 0010:dump_holder fs/gfs2/glock.c:2306 [inline] RIP: 0010:gfs2_dump_glock+0xd5f/0x1920 fs/gfs2/glock.c:2422 Code: 60 91 ef 8a be 14 03 00 00 48 c7 c2 a0 91 ef 8a e8 96 e8 c7 fd 49 8d 5d 20 49 89 de 49 c1 ee 03 48 b8 00 00 00 00 00 fc ff df <41> 0f b6 04 06 84 c0 0f 85 10 06 00 00 48 89 5c 24 38 0f b7 1b 89 RSP: 0018:ffffc900053df740 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 742f6c656e72658b RCX: ffff888024428000 RDX: 0000000000000000 RSI: ffffffff8afc6ae0 RDI: ffffffff8afc6aa0 RBP: ffffc900053dfa30 R08: dffffc0000000000 R09: 1ffffffff21b50a0 R10: dffffc0000000000 R11: fffffbfff21b50a1 R12: ffffffff839fc27f R13: 742f6c656e72656b R14: 0e85ed8cadce4cb1 R15: 0000000000000100 FS: 00007fba4da496c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb9ecf8b000 CR3: 000000007f621000 CR4: 00000000003506e0 ---------------- Code disassembly (best guess), 1 bytes skipped: 0: 91 xchg %eax,%ecx 1: ef out %eax,(%dx) 2: 8a be 14 03 00 00 mov 0x314(%rsi),%bh 8: 48 c7 c2 a0 91 ef 8a mov $0xffffffff8aef91a0,%rdx f: e8 96 e8 c7 fd call 0xfdc7e8aa 14: 49 8d 5d 20 lea 0x20(%r13),%rbx 18: 49 89 de mov %rbx,%r14 1b: 49 c1 ee 03 shr $0x3,%r14 1f: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 26: fc ff df * 29: 41 0f b6 04 06 movzbl (%r14,%rax,1),%eax <-- trapping instruction 2e: 84 c0 test %al,%al 30: 0f 85 10 06 00 00 jne 0x646 36: 48 89 5c 24 38 mov %rbx,0x38(%rsp) 3b: 0f b7 1b movzwl (%rbx),%ebx 3e: 89 .byte 0x89

Crashes (12):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2025/11/09 05:39	linux-6.6.y	0a805b6ea8cd	4e1406b4	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)]	ci2-linux-6-6-kasan	general protection fault in gfs2_dump_glock
2025/11/09 02:00	linux-6.6.y	0a805b6ea8cd	4e1406b4	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)]	ci2-linux-6-6-kasan	general protection fault in gfs2_dump_glock
2025/11/08 23:50	linux-6.6.y	0a805b6ea8cd	4e1406b4	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)]	ci2-linux-6-6-kasan	general protection fault in gfs2_dump_glock
2025/07/26 04:30	linux-6.6.y	dbcb8d8e4163	fb8f743d	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)]	ci2-linux-6-6-kasan	general protection fault in gfs2_dump_glock
2025/07/25 14:36	linux-6.6.y	dbcb8d8e4163	fb8f743d	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)]	ci2-linux-6-6-kasan	general protection fault in gfs2_dump_glock
2025/07/23 07:10	linux-6.6.y	d96eb99e2f0e	e1dd4f22	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	KASAN: vmalloc-out-of-bounds Read in gfs2_dump_glock
2025/11/12 17:31	linux-6.6.y	0a805b6ea8cd	07e030de	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	general protection fault in gfs2_dump_glock
2025/10/30 20:45	linux-6.6.y	e5bbb12db2c7	2c50b6a9	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	general protection fault in gfs2_dump_glock
2025/10/22 06:41	linux-6.6.y	f231f248323d	252fbbad	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	KASAN: slab-use-after-free Read in gfs2_dump_glock
2025/10/20 18:09	linux-6.6.y	f231f248323d	d422939c	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	general protection fault in gfs2_dump_glock
2025/08/06 02:35	linux-6.6.y	3a8ababb8b6a	ffe1dd46	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	general protection fault in gfs2_dump_glock
2025/07/25 05:11	linux-6.6.y	dbcb8d8e4163	fb8f743d	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-6-6-kasan	general protection fault in gfs2_dump_glock

Crashes (12):

Assets (help?)