general protection fault in vsscanf

Date	Name	Commit	Repro	Result
2026/08/19	linux-5.15.y (ToT)	aabd761612db	C	[report] general protection fault in vsscanf
2026/08/19	upstream (ToT)	bd5f485f3f02	C	Didn't crash

Date

Name

Commit

Repro

Result

2026/08/19

linux-5.15.y (ToT)

aabd761612db

[report] general protection fault in vsscanf

2026/08/19

upstream (ToT)

bd5f485f3f02

Didn't crash

Kernel	Title	Rank 🛈	Repro	Count	Last	Reported	Patched	Status
android-6-1	general protection fault in vsscanf	2	syz, C	102	8h21m	54d	0/2	upstream: reported C repro on 2026/08/18 10:26
linux-6.1	BUG: unable to handle kernel paging request in vsscanf	8	syz, C	85	10h31m	54d	0/3	upstream: reported C repro on 2026/08/18 15:35
linux-6.6	general protection fault in vsscanf	2	syz, C	33	4d06h	53d	0/2	upstream: reported C repro on 2026/08/19 08:56
android-5-15	general protection fault in vsscanf	2	syz, C	45	11h33m	54d	0/2	upstream: reported C repro on 2026/08/18 22:10
upstream	general protection fault in vsscanf (2) mm	2	syz, C	11	659d	664d	28/29	fixed on 2025/05/06 15:33
upstream	general protection fault in vsscanf v9fs	2	syz, C	7	2985d	3015d	8/29	fixed on 2018/09/03 14:47
android-49	general protection fault in vsscanf	2	syz, C	6	2965d	2738d	0/3	public: reported C repro on 2019/04/14 00:00
android-6-12	general protection fault in vsscanf origin:lts	2	syz, C	163	11h39m	54d	0/1	premoderation: reported C repro on 2026/08/18 03:15
linux-4.19	BUG: unable to handle kernel paging request in vsscanf (2)	8		2	1823d	1925d	0/1	auto-closed as invalid on 2022/02/11 22:53
upstream	KMSAN: uninit-value in vsscanf bluetooth	7	syz	9	1684d	1750d	0/29	auto-closed as invalid on 2022/09/27 18:52
linux-4.19	BUG: unable to handle kernel paging request in vsscanf (3)	8		1	1631d	1631d	0/1	auto-closed as invalid on 2022/08/22 19:56

general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] CPU: 0 PID: 4487 Comm: syz.0.17 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026 RIP: 0010:vsscanf+0x196/0x24b0 lib/vsprintf.c:3450 Code: 48 c7 c6 e0 fb 94 8c e8 c8 ff 6c fd 41 83 fe 25 74 4d 45 85 f6 0f 84 b6 21 00 00 48 ff c3 48 89 5c 24 78 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 4f 1b 00 00 41 0f b6 1f 45 0f b6 f6 44 RSP: 0018:ffffc9000321f600 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffffff8a35bae1 RCX: 0000000000000001 RDX: ffffffff840c0148 RSI: ffffffff8c94fbe0 RDI: 0000000000000030 RBP: ffffc9000321f730 R08: ffff8880215dbb80 R09: 0000000000000002 R10: 0000000000000025 R11: 0000000000000000 R12: ffffffff8a35bae0 R13: dffffc0000000000 R14: 0000000000000030 R15: 0000000000000000 FS: 000055555c9c7500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2da63fff CR3: 0000000022ad1000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> sscanf+0xdf/0x130 lib/vsprintf.c:3708 split_huge_pages_write+0x30d/0x1750 mm/huge_memory.c:3112 full_proxy_write+0x109/0x1c0 fs/debugfs/file.c:244 vfs_write+0x304/0xd70 fs/read_write.c:592 ksys_write+0x153/0x260 fs/read_write.c:647 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: 0033:0x7f62ce9f90d9 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe514ae0f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001 RAX: ffffffffffffffda RBX: 00007f62cec80fa0 RCX: 00007f62ce9f90d9 RDX: 0000000000000005 RSI: 0000200000000600 RDI: 0000000000000003 RBP: 00007f62cea90024 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f62cec80fac R14: 00007f62cec80fa0 R15: 00007f62cec80fa0 </TASK> Modules linked in: ---[ end trace 9730491ac5643c78 ]--- RIP: 0010:vsscanf+0x196/0x24b0 lib/vsprintf.c:3450 Code: 48 c7 c6 e0 fb 94 8c e8 c8 ff 6c fd 41 83 fe 25 74 4d 45 85 f6 0f 84 b6 21 00 00 48 ff c3 48 89 5c 24 78 4c 89 f8 48 c1 e8 03 <42> 0f b6 04 28 84 c0 0f 85 4f 1b 00 00 41 0f b6 1f 45 0f b6 f6 44 RSP: 0018:ffffc9000321f600 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffffffff8a35bae1 RCX: 0000000000000001 RDX: ffffffff840c0148 RSI: ffffffff8c94fbe0 RDI: 0000000000000030 RBP: ffffc9000321f730 R08: ffff8880215dbb80 R09: 0000000000000002 R10: 0000000000000025 R11: 0000000000000000 R12: ffffffff8a35bae0 R13: dffffc0000000000 R14: 0000000000000030 R15: 0000000000000000 FS: 000055555c9c7500(0000) GS:ffff8880b9000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00005568b63a2950 CR3: 0000000022ad1000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 48 c7 c6 e0 fb 94 8c mov $0xffffffff8c94fbe0,%rsi 7: e8 c8 ff 6c fd call 0xfd6cffd4 c: 41 83 fe 25 cmp $0x25,%r14d 10: 74 4d je 0x5f 12: 45 85 f6 test %r14d,%r14d 15: 0f 84 b6 21 00 00 je 0x21d1 1b: 48 ff c3 inc %rbx 1e: 48 89 5c 24 78 mov %rbx,0x78(%rsp) 23: 4c 89 f8 mov %r15,%rax 26: 48 c1 e8 03 shr $0x3,%rax * 2a: 42 0f b6 04 28 movzbl (%rax,%r13,1),%eax <-- trapping instruction 2f: 84 c0 test %al,%al 31: 0f 85 4f 1b 00 00 jne 0x1b86 37: 41 0f b6 1f movzbl (%r15),%ebx 3b: 45 0f b6 f6 movzbl %r14b,%r14d 3f: 44 rex.R

Crashes (26):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/08/18 23:35	linux-5.15.y	aabd761612db	1e72964b	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/08/18 23:04	linux-5.15.y	aabd761612db	1e72964b	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/11 13:59	linux-5.15.y	a051a4bf909f	4f92358f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/11 13:58	linux-5.15.y	a051a4bf909f	4f92358f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/11 10:41	linux-5.15.y	a051a4bf909f	4f92358f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/11 10:40	linux-5.15.y	a051a4bf909f	4f92358f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/10 20:20	linux-5.15.y	a051a4bf909f	4f92358f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/10 20:19	linux-5.15.y	a051a4bf909f	4f92358f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/10 20:18	linux-5.15.y	a051a4bf909f	4f92358f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/10 20:16	linux-5.15.y	a051a4bf909f	4f92358f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/10 20:15	linux-5.15.y	a051a4bf909f	4f92358f	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/07 19:25	linux-5.15.y	a051a4bf909f	6520ecdb	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/10/07 19:24	linux-5.15.y	a051a4bf909f	6520ecdb	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/09/14 21:05	linux-5.15.y	0248c33e835e	81a27d1a	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/09/14 01:55	linux-5.15.y	0996e0926f6b	70a60e12	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/09/14 01:53	linux-5.15.y	0996e0926f6b	70a60e12	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/09/02 01:39	linux-5.15.y	28c35638ec51	587f6b29	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/09/02 01:37	linux-5.15.y	28c35638ec51	587f6b29	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/08/30 06:29	linux-5.15.y	28c35638ec51	2f52988a	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/08/30 06:28	linux-5.15.y	28c35638ec51	2f52988a	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/08/30 01:07	linux-5.15.y	28c35638ec51	2f52988a	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/08/30 01:07	linux-5.15.y	28c35638ec51	2f52988a	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/08/19 01:12	linux-5.15.y	aabd761612db	1e72964b	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/08/19 01:11	linux-5.15.y	aabd761612db	1e72964b	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/08/18 22:34	linux-5.15.y	aabd761612db	1e72964b	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf
2026/08/18 22:34	linux-5.15.y	aabd761612db	1e72964b	.config	console log	report			info	[disk image] [vmlinux] [kernel image]	ci2-linux-5-15-kasan	general protection fault in vsscanf

Crashes (26):

Assets (help?)

2026/08/18 23:35

linux-5.15.y