kernel BUG in ext4_es_cache

Date	Name	Commit	Repro	Result
2026/03/12	upstream (ToT)	80234b5ab240	syz	Failed due to an error; will retry later

Date

Name

Commit

Repro

Result

2026/03/12

upstream (ToT)

80234b5ab240

syz

Failed due to an error; will retry later

Kernel	Title	Rank 🛈	Repro	Cause bisect	Fix bisect	Count	Last	Reported	Patched	Status
upstream	kernel BUG in ext4_es_cache_extent ext4	-1	C	inconclusive		6	1139d	1498d	22/29	fixed on 2023/02/24 13:50
android-54	kernel BUG in ext4_es_cache_extent ext4	-1	C			16	605d	1295d	0/2	auto-obsoleted due to no activity on 2024/10/26 14:37
upstream	kernel BUG in ext4_es_cache_extent (4) ext4	-1	C	error		15	5d09h	35d	0/29	upstream: reported C repro on 2026/02/09 02:08
android-5-15	kernel BUG in ext4_es_cache_extent origin:lts	-1	C			7	9d14h	22d	0/2	upstream: reported C repro on 2026/02/22 03:30
android-5-10	kernel BUG in ext4_es_cache_extent	-1	C	error		1	1295d	1295d	0/2	closed as invalid on 2022/09/13 19:49
upstream	kernel BUG in ext4_es_cache_extent (3) ext4	-1	C			4	179d	192d	29/29	fixed on 2025/11/18 08:45
android-5-10	kernel BUG in ext4_es_cache_extent (2)	-1	C		done	7	6d14h	150d	0/2	upstream: reported C repro on 2025/10/16 22:01
android-6-1	kernel BUG in ext4_es_cache_extent origin:upstream	-1	C			11	7d11h	9d12h	0/2	upstream: reported C repro on 2026/03/06 16:01
upstream	kernel BUG in ext4_es_cache_extent (2) ext4	-1				1	416d	412d	0/29	auto-obsoleted due to no activity on 2025/05/03 18:51

------------[ cut here ]------------ kernel BUG at fs/ext4/extents_status.c:967! Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP Modules linked in: CPU: 1 PID: 4573 Comm: syz.0.32 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/26/2026 pstate: 82400005 (Nzcv daif +PAN -UAO +TCO -DIT -SSBS BTYPE=--) pc : ext4_es_cache_extent+0x630/0x6c4 fs/ext4/extents_status.c:967 lr : ext4_es_cache_extent+0x630/0x6c4 fs/ext4/extents_status.c:967 sp : ffff8000214b6c40 x29: ffff8000214b6ce0 x28: ffff0000eabae4d8 x27: dfff800000000000 x26: ffff8000214b6c40 x25: ffff700004296d88 x24: 0000000000000001 x23: ffff80001520d160 x22: 0000000000000002 x21: 0000000000000110 x20: 0000000000000114 x19: ffff0000e2a934d8 x18: ffff800011b8bf60 x17: 1fffe00033eac97e x16: ffff8000082ef8dc x15: ffff80001520d000 x14: 0000000000000003 x13: 1ffff00004296d8c x12: 0000000000ff0100 x11: ff00800008d3b5f8 x10: 0000000000000000 x9 : ffff800008d3b5f8 x8 : ffff0000d3ff0000 x7 : 0000000000000000 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000010 x2 : 0000000000000008 x1 : 0000000000000114 x0 : 0000000000000110 Call trace: ext4_es_cache_extent+0x630/0x6c4 fs/ext4/extents_status.c:967 ext4_cache_extents fs/ext4/extents.c:536 [inline] __read_extent_tree_block+0x450/0x840 fs/ext4/extents.c:583 ext4_find_extent+0x71c/0xb68 fs/ext4/extents.c:936 ext4_ext_map_blocks+0x268/0x56f4 fs/ext4/extents.c:4172 ext4_map_blocks+0x860/0x1778 fs/ext4/inode.c:679 _ext4_get_block+0x19c/0x4d8 fs/ext4/inode.c:822 ext4_get_block_unwritten+0x3c/0x110 fs/ext4/inode.c:855 ext4_block_write_begin+0x50c/0x10e4 fs/ext4/inode.c:1124 ext4_write_begin+0x5f4/0x131c fs/ext4/ext4_jbd2.h:-1 ext4_da_write_begin+0x348/0x990 fs/ext4/inode.c:3000 generic_perform_write+0x234/0x4f4 mm/filemap.c:3862 ext4_buffered_write_iter+0x2c4/0x528 fs/ext4/file.c:285 ext4_file_write_iter+0x18c/0x1574 fs/ext4/file.c:-1 call_write_iter include/linux/fs.h:2265 [inline] new_sync_write fs/read_write.c:491 [inline] vfs_write+0x3ec/0x7f0 fs/read_write.c:584 ksys_pwrite64 fs/read_write.c:699 [inline] __do_sys_pwrite64 fs/read_write.c:709 [inline] __se_sys_pwrite64 fs/read_write.c:706 [inline] __arm64_sys_pwrite64+0x174/0x20c fs/read_write.c:706 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b4 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x130 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x128 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: b40004f6 97ddbf33 17fffebd 97ddbf31 (d4210000) ---[ end trace 0000000000000000 ]---

Crashes (1):
Time	Kernel	Commit	Syzkaller	Config	Log	Report	Syz repro	C repro	VM info	Assets (help?)	Manager	Title
2026/03/11 08:54	linux-6.1.y	f2ddafa93a25	86914af9	.config	console log	report	syz / log			[disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)]	ci2-linux-6-1-kasan-arm64	kernel BUG in ext4_es_cache_extent

Crashes (1):

Assets (help?)