BUG: unable to handle kernel paging request in udf_fiiter_write

Date	Name	Commit	Repro	Result
2025/06/14	linux-6.1.y (ToT)	58485ff1a74f	C	[report] BUG: unable to handle kernel paging request in udf_fiiter_write_fi
2025/06/14	upstream (ToT)	4774cfe3543a	C	Didn't crash

Date

Name

Commit

Repro

Result

2025/06/14

linux-6.1.y (ToT)

58485ff1a74f

[report] BUG: unable to handle kernel paging request in udf_fiiter_write_fi

2025/06/14

upstream (ToT)

4774cfe3543a

Didn't crash

Kernel	Title	Rank 🛈	Repro	Cause bisect	Count	Last	Reported	Patched	Status
linux-5.15	BUG: unable to handle kernel paging request in udf_fiiter_write_fi origin:lts-only	8	C		1	11d	14d	0/3	upstream: reported C repro on 2025/06/26 07:14
upstream	general protection fault in udf_fiiter_write_fi udf	2	C	error	2	909d	913d	22/29	fixed on 2023/06/08 14:41
linux-6.1	general protection fault in udf_fiiter_write_fi	2			1	242d	242d	0/3	auto-obsoleted due to no activity on 2025/02/18 06:56

Unable to handle kernel paging request at virtual address dfff800000000005 KASAN: null-ptr-deref in range [0x0000000000000028-0x000000000000002f] Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 [dfff800000000005] address between user and kernel address ranges Internal error: Oops: 0000000096000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 4297 Comm: syz-executor921 Not tainted 6.1.141-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : udf_fiiter_write_fi+0x178/0xaa8 fs/udf/directory.c:405 lr : udf_fiiter_write_fi+0xd8/0xaa8 fs/udf/directory.c:401 sp : ffff8000207d74d0 x29: ffff8000207d7540 x28: ffff0000e01b1d60 x27: ffff8000207d76f0 x26: dfff800000000000 x25: 1ffff000040faf12 x24: 0000000000000200 x23: 0000000000000000 x22: ffff0000d76e87c0 x21: 0000000000000001 x20: 0000000000000028 x19: ffff8000207d7890 x18: 0000000000000000 x17: 000000000000001c x16: ffff8000082d1c00 x15: 0000000000000000 x14: 000000003b9aca00 x13: 000000001c03a180 x12: 0000000000ff0100 x11: ff008000098292dc x10: 0000000000000000 x9 : ffff0000d52c9bc0 x8 : 0000000000000005 x7 : 000000001c03a180 x6 : 0000000000000028 x5 : ffff0000d76e81e0 x4 : ffff0000d76e81d0 x3 : ffff800009814e68 x2 : 0000000000000010 x1 : 0000000000000000 x0 : 0000000000000003 Call trace: udf_fiiter_write_fi+0x178/0xaa8 fs/udf/directory.c:405 udf_rename+0x960/0xa10 fs/udf/namei.c:860 vfs_rename+0x954/0xdcc fs/namei.c:4874 do_renameat2+0x738/0xa54 fs/namei.c:5027 __do_sys_renameat2 fs/namei.c:5060 [inline] __se_sys_renameat2 fs/namei.c:5057 [inline] __arm64_sys_renameat2+0xe0/0xfc fs/namei.c:5057 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x138 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 Code: 97c2b1f6 f9400288 9100a114 d343fe88 (387a6908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 97c2b1f6 bl 0xffffffffff0ac7d8 4: f9400288 ldr x8, [x20] 8: 9100a114 add x20, x8, #0x28 c: d343fe88 lsr x8, x20, #3 * 10: 387a6908 ldrb w8, [x8, x26] <-- trapping instruction

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2025/06/09 11:17	linux-6.1.y	58485ff1a74f	4826c28e	.config	console log	report	syz / log	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-6-1-kasan-arm64	BUG: unable to handle kernel paging request in udf_fiiter_write_fi

Crashes (1):

Assets (help?)