BUG: unable to handle kernel paging request in ext4_acquire

Date	Name	Commit	Repro	Result
2023/05/17	linux-5.15.y (ToT)	b0ece631f84a	C	[report] BUG: unable to handle kernel paging request in ext4_acquire_dquot
2023/05/17	upstream (ToT)	f1fcbaa18b28	C	Didn't crash

Date

Name

Commit

Repro

Result

2023/05/17

linux-5.15.y (ToT)

b0ece631f84a

[report] BUG: unable to handle kernel paging request in ext4_acquire_dquot

2023/05/17

upstream (ToT)

f1fcbaa18b28

Didn't crash

Kernel	Title	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	general protection fault in ext4_acquire_dquot ext4	C			4	519d	559d	23/28	fixed on 2023/10/12 12:47
android-6-1	general protection fault in ext4_acquire_dquot origin:lts	C	done	done	1	423d	547d	0/2	auto-obsoleted due to no activity on 2024/01/03 10:28
android-5-15	general protection fault in ext4_acquire_dquot	C	done	done	2	515d	547d	2/2	fixed on 2023/09/06 18:13

Created	Duration	User	Patch	Repo	Result
2023/08/03 18:11	9h34m	bisect fix		linux-5.15.y	OK (1) job log
2023/06/16 06:57	0m	bisect fix		linux-5.15.y	error job log marked invalid by nogikh@google.com

Created

Duration

User

Patch

Repo

Result

2023/08/03 18:11

9h34m

bisect fix

linux-5.15.y

OK (1) job log

2023/06/16 06:57

bisect fix

linux-5.15.y

error job log
marked invalid by nogikh@google.com

Unable to handle kernel paging request at virtual address dfff800000000005 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: 96000006 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 5010 Comm: syz-executor231 Not tainted 5.15.111-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/14/2023 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : ext4_acquire_dquot+0x1d4/0x398 fs/ext4/super.c:6162 lr : dquot_to_inode fs/ext4/super.c:6136 [inline] lr : ext4_acquire_dquot+0x1ac/0x398 fs/ext4/super.c:6162 sp : ffff80001eac7260 x29: ffff80001eac7260 x28: 1fffe0001bf3d43c x27: ffff8000148d0380 x26: ffff0000dd274000 x25: ffff0000dd276000 x24: 1fffe0001bf3d45c x23: dfff800000000000 x22: 0000000000000000 x21: 0000000000000049 x20: 0000000000000028 x19: ffff0000df9ea1c0 x18: 0000000000000001 x17: ff80800008b6b290 x16: ffff8000088c75e0 x15: ffff800008b6b290 x14: 1ffff0000291a06a x13: ffffffffffffffff x12: 0000000000000000 x11: ff80800008e6f9a8 x10: 0000000000000000 x9 : ffff800008e6f9a8 x8 : 0000000000000005 x7 : ffff800008b4a130 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff800011a0dae4 x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000003 Call trace: ext4_acquire_dquot+0x1d4/0x398 fs/ext4/super.c:6162 dqget+0x848/0xc58 fs/quota/dquot.c:914 __dquot_initialize+0x2cc/0xb54 fs/quota/dquot.c:1492 dquot_initialize fs/quota/dquot.c:1550 [inline] dquot_file_open+0x90/0xc8 fs/quota/dquot.c:2174 ext4_file_open+0x200/0x540 fs/ext4/file.c:876 do_dentry_open+0x780/0xed8 fs/open.c:826 vfs_open+0x7c/0x90 fs/open.c:956 do_open fs/namei.c:3538 [inline] path_openat+0x1f28/0x26f0 fs/namei.c:3672 do_filp_open+0x1a8/0x3b4 fs/namei.c:3699 do_sys_openat2+0x128/0x3d8 fs/open.c:1211 do_sys_open fs/open.c:1227 [inline] __do_sys_openat fs/open.c:1243 [inline] __se_sys_openat fs/open.c:1238 [inline] __arm64_sys_openat+0x1f0/0x240 fs/open.c:1238 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:596 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:614 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 Code: 97e95e0c f9400288 9100a114 d343fe88 (38776908) ---[ end trace a4830b72ac37c257 ]--- ---------------- Code disassembly (best guess): 0: 97e95e0c bl 0xffffffffffa57830 4: f9400288 ldr x8, [x20] 8: 9100a114 add x20, x8, #0x28 c: d343fe88 lsr x8, x20, #3 * 10: 38776908 ldrb w8, [x8, x23] <-- trapping instruction

Crashes (2):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2023/05/14 21:50	linux-5.15.y	b0ece631f84a	2b9ba477	.config	console log	report	syz	C		[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-5-15-kasan-arm64	BUG: unable to handle kernel paging request in ext4_acquire_dquot
2023/06/19 05:20	linux-5.15.y	471e639e59d1	f3921d4d	.config	console log	report	syz			[disk image] [vmlinux] [kernel image] [mounted in repro]	ci2-linux-5-15-kasan	general protection fault in ext4_acquire_dquot

Crashes (2):

Assets (help?)