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kernel BUG in ext4_mb_use_inode_pa (2)

Status: upstream: reported C repro on 2024/08/08 04:33
Subsystems: ext4
[Documentation on labels]
Reported-by: syzbot+d79019213609e7056a19@syzkaller.appspotmail.com
First crash: 689d, last: 4h42m
Cause bisection: failed (error log, bisect log)
  
▶ ▼ ✨ AI Jobs (6)
ID Workflow Result Correct Bug Created Started Finished Revision Error
8986205b-8ff6-455b-9cb5-5ba59b0166ba assessment-security 💥 kernel BUG in ext4_mb_use_inode_pa (2) 2026/06/18 06:30 2026/06/18 06:30 2026/06/18 06:53 b62b3ded1759f79b37600c5ffe2b0a81b919b0b0 
failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/8f11055892936fd79e...
truncated to first 200 bytes; open job for full error
791ec586-a5fa-409f-8123-8b1ac3e1dfd7 assessment-security 💥 kernel BUG in ext4_mb_use_inode_pa (2) 2026/06/10 02:29 2026/06/10 02:29 2026/06/10 02:53 c36c07f6c1f2230a36374cbd22235f635e8f9284 
failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/8f11055892936fd79e...
truncated to first 200 bytes; open job for full error
ba09ea19-c3a0-4701-8b08-9f4c199a608d assessment-security 💥 kernel BUG in ext4_mb_use_inode_pa (2) 2026/06/04 04:59 2026/06/04 04:59 2026/06/04 05:16 62fe15281f5011cd203d8845b8767b10e7443aa5 
failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/8f11055892936fd79e...
truncated to first 200 bytes; open job for full error
10408e47-fe6e-41ee-a60b-8a68579bca7a assessment-security 💥 kernel BUG in ext4_mb_use_inode_pa (2) 2026/06/02 00:08 2026/06/02 00:08 2026/06/02 00:33 386cc6dacdf7e3ebce9507beed6755d7e999554d 
failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/8f11055892936fd79e...
truncated to first 200 bytes; open job for full error
c6faadbc-125e-4c9a-92b3-2fb5e170c197 patching 💥 kernel BUG in ext4_mb_use_inode_pa (2) 2026/05/21 20:54 2026/05/21 21:37 2026/05/21 22:18 d57425845dbe663f86e1e54a4997e95bd557b624 
reproducer did not crash
d64dc950-c257-490b-aaa5-d393a40ada62 assessment-security 💥 kernel BUG in ext4_mb_use_inode_pa (2) 2026/05/20 01:03 2026/05/20 01:03 2026/05/20 01:27 1d9407ad5a662c921fc0d659cf022b438c0bde91 
failed to run ["make" "KERNELVERSION=syzkaller" "KERNELRELEASE=syzkaller" "LOCALVERSION=-syzkaller" "-j" "32" "ARCH=x86_64" "CC=ccache clang" "LD=ld.lld" "O=/app/workdir/cache/build/8f11055892936fd79e...
truncated to first 200 bytes; open job for full error
▶ ▼ Discussions (2)
Title Replies (including bot) Last reply
[syzbot] Monthly ext4 report (Oct 2025) 0 (1) 2025/10/29 09:02
[syzbot] [ext4?] kernel BUG in ext4_mb_use_inode_pa (2) 0 (2) 2024/09/06 04:42
▶ ▼ Similar bugs (4)
Kernel Title Rank 🛈 Repro Cause bisect Fix bisect Count Last Reported Patched Status
android-5-10 kernel BUG in ext4_mb_use_inode_pa -1 syz done 2 76d 106d 0/2 premoderation: reported syz repro on 2026/03/09 22:43
upstream kernel BUG in ext4_mb_use_inode_pa ext4 -1 C error done 2 1359d 1359d 22/29 fixed on 2023/02/24 13:50
android-5-15 kernel BUG in ext4_mb_use_inode_pa origin:lts -1 C error 6 65d 122d 0/2 upstream: reported C repro on 2026/02/22 04:22
linux-6.1 kernel BUG in ext4_mb_use_inode_pa -1 syz error 1 105d 105d 0/3 upstream: reported syz repro on 2026/03/11 09:28
▶ ▼ Last patch testing requests (10)
Created Duration User Patch Repo Result
2026/05/24 13:23 28m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci OK log
2026/05/05 16:18 23m retest repro upstream error
2026/03/11 20:07 22m retest repro upstream OK log
2026/03/11 19:37 22m retest repro linux-next OK log
2026/03/11 18:29 25m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci error
2026/02/24 15:16 22m retest repro upstream OK log
2026/02/24 15:16 22m retest repro upstream OK log
2026/02/24 15:16 14m retest repro upstream report log
2025/03/11 17:03 31m retest repro git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci report log
2025/02/04 01:53 15m retest repro upstream report log

Sample crash report:
EXT4-fs (loop0): mounted filesystem 00000000-0000-0000-0000-000000000000 r/w without journal. Quota mode: none.
loop0: detected capacity change from 512 to 64
------------[ cut here ]------------
kernel BUG at fs/ext4/mballoc.c:4689!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN NOPTI
CPU: 0 UID: 0 PID: 5093 Comm: syz-executor323 Not tainted 6.11.0-rc6-syzkaller-00075-gad618736883b #0
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
RIP: 0010:ext4_mb_use_inode_pa+0x690/0x700 fs/ext4/mballoc.c:4689
Code: 40 1d b0 8e 4c 89 e6 48 89 ea e8 fb c5 8b 02 e9 be fc ff ff e8 f1 05 33 ff 90 0f 0b e8 e9 05 33 ff 90 0f 0b e8 e1 05 33 ff 90 <0f> 0b e8 d9 05 33 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90002cde8e8 EFLAGS: 00010293
RAX: ffffffff826086cf RBX: 00000000fffffffe RCX: ffff88801edf2440
RDX: 0000000000000000 RSI: 0000000000000041 RDI: 000000000000003f
RBP: 0000000000000000 R08: ffffffff826083cf R09: 1ffff11003fcbd4e
R10: dffffc0000000000 R11: ffffed1003fcbd4f R12: ffff88801fe5ea88
R13: 1ffff110025a4181 R14: 0000000000000041 R15: 1ffff11003fcbd51
FS:  000055557d5ee380(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000f000 CR3: 0000000000b5c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_mb_use_preallocated+0x680/0x1420 fs/ext4/mballoc.c:4906
 ext4_mb_new_blocks+0x6ef/0x4e30 fs/ext4/mballoc.c:6210
 ext4_alloc_branch fs/ext4/indirect.c:340 [inline]
 ext4_ind_map_blocks+0x1084/0x2a10 fs/ext4/indirect.c:635
 ext4_map_blocks+0x9f6/0x1d20 fs/ext4/inode.c:654
 mpage_map_one_extent fs/ext4/inode.c:2237 [inline]
 mpage_map_and_submit_extent fs/ext4/inode.c:2290 [inline]
 ext4_do_writepages+0x1605/0x3d40 fs/ext4/inode.c:2753
 ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2842
 do_writepages+0x35d/0x870 mm/page-writeback.c:2683
 filemap_fdatawrite_wbc+0x125/0x180 mm/filemap.c:397
 __filemap_fdatawrite_range mm/filemap.c:430 [inline]
 file_write_and_wait_range+0x1aa/0x290 mm/filemap.c:788
 generic_buffers_fsync_noflush+0x73/0x170 fs/buffer.c:600
 ext4_fsync_nojournal fs/ext4/fsync.c:88 [inline]
 ext4_sync_file+0x413/0xb90 fs/ext4/fsync.c:151
 generic_write_sync include/linux/fs.h:2822 [inline]
 ext4_buffered_write_iter+0x286/0x350 fs/ext4/file.c:305
 ext4_file_write_iter+0x1de/0x1a10
 new_sync_write fs/read_write.c:497 [inline]
 vfs_write+0xa72/0xc90 fs/read_write.c:590
 ksys_pwrite64 fs/read_write.c:705 [inline]
 __do_sys_pwrite64 fs/read_write.c:715 [inline]
 __se_sys_pwrite64 fs/read_write.c:712 [inline]
 __x64_sys_pwrite64+0x1aa/0x230 fs/read_write.c:712
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2de5ebcc59
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 17 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007ffdfe577c58 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2de5ebcc59
RDX: 000000000000fdef RSI: 0000000020000140 RDI: 0000000000000006
RBP: 00007f2de5f305f0 R08: 000055557d5ef4c0 R09: 000055557d5ef4c0
R10: 000000000000fecc R11: 0000000000000246 R12: 00007ffdfe577c80
R13: 00007ffdfe577ea8 R14: 431bde82d7b634db R15: 00007f2de5f0503b
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:ext4_mb_use_inode_pa+0x690/0x700 fs/ext4/mballoc.c:4689
Code: 40 1d b0 8e 4c 89 e6 48 89 ea e8 fb c5 8b 02 e9 be fc ff ff e8 f1 05 33 ff 90 0f 0b e8 e9 05 33 ff 90 0f 0b e8 e1 05 33 ff 90 <0f> 0b e8 d9 05 33 ff 90 0f 0b 48 8b 0c 24 80 e1 07 80 c1 03 38 c1
RSP: 0018:ffffc90002cde8e8 EFLAGS: 00010293
RAX: ffffffff826086cf RBX: 00000000fffffffe RCX: ffff88801edf2440
RDX: 0000000000000000 RSI: 0000000000000041 RDI: 000000000000003f
RBP: 0000000000000000 R08: ffffffff826083cf R09: 1ffff11003fcbd4e
R10: dffffc0000000000 R11: ffffed1003fcbd4f R12: ffff88801fe5ea88
R13: 1ffff110025a4181 R14: 0000000000000041 R15: 1ffff11003fcbd51
FS:  000055557d5ee380(0000) GS:ffff88801fe00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002000f000 CR3: 0000000000b5c000 CR4: 0000000000350ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400

Crashes (343):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2024/09/06 04:41 upstream ad618736883b 464ac2ed .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/01/13 00:05 upstream 0f61b1860cc3 d6526ea3 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci2-upstream-fs kernel BUG in ext4_mb_use_inode_pa
2024/08/04 04:29 upstream defaf1a2113a 1786a2a8 .config console log report info [disk image] [vmlinux] [kernel image] ci-upstream-kasan-gce-selinux-root kernel BUG in ext4_mb_use_inode_pa
2026/06/24 06:21 upstream f31c00c377cc 042555ff .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/23 04:03 upstream 4708cac0e22c 5a630be6 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/22 19:54 upstream ef0c9f75a195 ab2703f0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/21 23:06 upstream 8cd8cf7a07e5 43bfcdb0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/21 09:33 upstream 390d73adf896 43bfcdb0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/20 17:25 upstream 1a3746ccbb0a 43bfcdb0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/20 14:05 upstream 1a3746ccbb0a 43bfcdb0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/20 08:51 upstream a975094bf98c 43bfcdb0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/20 02:18 upstream a975094bf98c 43bfcdb0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/19 12:08 upstream 9ecfb2f7287a 023e42b5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/19 08:11 upstream 83f1454877cc d7ffd47b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/19 05:38 upstream 83f1454877cc d7ffd47b .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/18 20:22 upstream e771677c937d a776b0d0 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/17 20:40 upstream 5b33fc6492a7 b62b3ded .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/17 18:05 upstream 5b33fc6492a7 b62b3ded .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/16 19:04 upstream b1cbabe84ca1 a3998659 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/16 17:52 upstream b1cbabe84ca1 a3998659 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/16 16:38 upstream b1cbabe84ca1 a3998659 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/16 13:28 upstream b1cbabe84ca1 a3998659 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/16 00:29 upstream 0e0611827f33 50bb0618 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/15 20:24 upstream 95e56f0f293e c700a26e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/15 07:27 upstream 95e56f0f293e 4f06757f .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/12 05:49 upstream 2b414a95b8f7 e93da63e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/12 00:24 upstream 2b414a95b8f7 e93da63e .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/11 16:45 upstream 9716c086c8e8 d93a6ab6 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/11 01:08 upstream 9716c086c8e8 b754d2d8 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/10 20:50 upstream acb7500801e9 f79bac11 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/10 17:25 upstream acb7500801e9 f79bac11 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/09 12:31 upstream 2d3090a8aeb5 c36c07f6 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/08 01:03 upstream 33d8d8ec31b5 cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/07 23:49 upstream 33d8d8ec31b5 cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/07 04:53 upstream 8e65320d91cd cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/06 23:37 upstream 8e65320d91cd cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/06 19:40 upstream 8e65320d91cd cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/06 18:51 upstream 8e65320d91cd cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/06 10:57 upstream 06121e12c27a cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/06 09:09 upstream 06121e12c27a cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/06 07:09 upstream 06121e12c27a cc095639 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/04 09:58 upstream ba3e43a9e601 197909be .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/06/04 02:00 upstream ba3e43a9e601 197909be .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/05/26 19:38 upstream d60ec36cab33 2b0043b4 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/05/10 06:42 upstream 1bfaee9d3351 29233ece .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/05/08 08:42 upstream fcee7d82f27d e358bca5 .config console log report [disk image (non-bootable)] [vmlinux] [kernel image] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2026/01/12 20:13 upstream 54e82e93ca93 d1b870e1 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2025/06/05 21:26 upstream ec7714e49479 6b6b5f21 .config console log report syz / log C [disk image (non-bootable)] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-snapshot-upstream-root kernel BUG in ext4_mb_use_inode_pa
2025/10/03 01:55 linux-next 7396732143a2 49379ee0 .config console log report syz / log C [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-upstream-linux-next-kasan-gce-root kernel BUG in ext4_mb_use_inode_pa
2025/02/23 10:17 git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci a1c24ab82279 d34966d1 .config console log report syz / log [disk image] [vmlinux] [kernel image] [mounted in repro (corrupt fs)] ci-upstream-gce-arm64 kernel BUG in ext4_mb_use_inode_pa
* Struck through repros no longer work on HEAD.