syzbot


WARNING in ext4_expand_extra_isize_ea

Status: auto-obsoleted due to no activity on 2023/08/16 18:52
Reported-by: syzbot+a06de11bdf679e95e0e2@syzkaller.appspotmail.com
First crash: 423d, last: 405d
Similar bugs (3)
Kernel Title Repro Cause bisect Fix bisect Count Last Reported Patched Status
linux-5.15 WARNING in ext4_expand_extra_isize_ea origin:lts-only C done 309 43d 424d 0/3 upstream: reported C repro on 2023/03/30 21:05
upstream WARNING in ext4_expand_extra_isize_ea ext4 C error done 3 532d 544d 22/26 fixed on 2023/02/24 13:50
upstream WARNING in ext4_expand_extra_isize_ea (2) ext4 3 424d 445d 0/26 auto-obsoleted due to no activity on 2023/07/29 05:01

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 7939 at mm/slab_common.c:923 folio_order include/linux/mm.h:738 [inline]
WARNING: CPU: 0 PID: 7939 at mm/slab_common.c:923 free_large_kmalloc+0x39/0x190 mm/slab_common.c:921
Modules linked in:
CPU: 0 PID: 7939 Comm: syz-executor.2 Not tainted 6.1.24-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/30/2023
RIP: 0010:free_large_kmalloc+0x39/0x190 mm/slab_common.c:923
Code: 48 8b 04 25 28 00 00 00 48 89 44 24 08 48 8b 47 08 a8 01 0f 85 4a 01 00 00 49 89 f6 0f 1f 44 00 00 49 f7 07 00 00 01 00 75 25 <0f> 0b 31 db 80 3d a8 da 78 0c 00 75 21 c6 05 9f da 78 0c 01 48 c7
RSP: 0018:ffffc9001129f748 EFLAGS: 00010246
RAX: ffffea0000749588 RBX: 0000000000000012 RCX: ffffea0000749588
RDX: ffffea0000000000 RSI: ffff88805ffe15a4 RDI: ffffea00017ff840
RBP: ffffc9001129f968 R08: ffffffff813d3f88 R09: fffffbfff204e044
R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000
R13: 0000000000000000 R14: ffff88805ffe15a4 R15: ffffea00017ff840
FS:  00007fe763757700(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b3072b000 CR3: 000000007c78c000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ext4_xattr_move_to_block fs/ext4/xattr.c:2629 [inline]
 ext4_xattr_make_inode_space fs/ext4/xattr.c:2692 [inline]
 ext4_expand_extra_isize_ea+0x1063/0x1bc0 fs/ext4/xattr.c:2784
 __ext4_expand_extra_isize+0x2f7/0x3d0 fs/ext4/inode.c:5890
 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5933 [inline]
 __ext4_mark_inode_dirty+0x54f/0x920 fs/ext4/inode.c:6011
 __ext4_unlink+0x97b/0xba0 fs/ext4/namei.c:3255
 ext4_unlink+0x1d5/0x670 fs/ext4/namei.c:3298
 vfs_unlink+0x359/0x5f0 fs/namei.c:4252
 do_unlinkat+0x49d/0x940 fs/namei.c:4320
 __do_sys_unlinkat fs/namei.c:4363 [inline]
 __se_sys_unlinkat fs/namei.c:4356 [inline]
 __x64_sys_unlinkat+0xca/0xf0 fs/namei.c:4356
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7fe762a8c169
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 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:00007fe763757168 EFLAGS: 00000246 ORIG_RAX: 0000000000000107
RAX: ffffffffffffffda RBX: 00007fe762bac050 RCX: 00007fe762a8c169
RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003
RBP: 00007fe762ae7ca1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe8cac17df R14: 00007fe763757300 R15: 0000000000022000
 </TASK>

Crashes (3):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2023/04/18 18:51 linux-6.1.y 0102425ac76b d931e9f0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ext4_expand_extra_isize_ea
2023/04/02 20:52 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ext4_expand_extra_isize_ea
2023/03/31 13:46 linux-6.1.y 3b29299e5f60 f325deb0 .config console log report info [disk image] [vmlinux] [kernel image] ci2-linux-6-1-kasan WARNING in ext4_expand_extra_isize_ea
* Struck through repros no longer work on HEAD.