------------[ cut here ]------------ kernel BUG at mm/slub.c:4184! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 286 Comm: syz-executor260 Not tainted 5.10.178-syzkaller-00127-g43c801dc3325 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 04/28/2023 RIP: 0010:kfree+0x269/0x270 mm/slub.c:4184 Code: 08 4c 89 ee 48 89 da e8 d5 64 f2 ff 65 ff 0d 7a 74 5b 7e 0f 85 d2 fd ff ff e8 bf 85 59 ff e9 c8 fd ff ff e8 a9 c0 02 03 0f 0b <0f> 0b 0f 1f 44 00 00 55 48 89 e5 53 48 83 ec 18 89 f2 65 48 8b 04 RSP: 0018:ffffc9000094f780 EFLAGS: 00010246 RAX: ffffea00046ff408 RBX: ffff88810da785a4 RCX: ffffea0004369e00 RDX: 0000000000000000 RSI: 0000000000000012 RDI: ffff88810da785a4 RBP: ffffc9000094f7d8 R08: ffffffff81ed6e69 R09: 0000000000000003 R10: fffff52000129e70 R11: dffffc0000000001 R12: 0000000000000000 R13: ffffffff8197a405 R14: 0000000000000000 R15: ffffea0004369e00 FS: 00005555565cf300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001000 CR3: 000000011eb9c000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kvfree+0x35/0x40 mm/util.c:647 ext4_xattr_move_to_block fs/ext4/xattr.c:2643 [inline] ext4_xattr_make_inode_space fs/ext4/xattr.c:2706 [inline] ext4_expand_extra_isize_ea+0x1124/0x1e60 fs/ext4/xattr.c:2798 __ext4_expand_extra_isize+0x303/0x3f0 fs/ext4/inode.c:5928 ext4_try_to_expand_extra_isize fs/ext4/inode.c:5971 [inline] __ext4_mark_inode_dirty+0x4a7/0x7b0 fs/ext4/inode.c:6048 __ext4_unlink+0x8b5/0xac0 fs/ext4/namei.c:3389 ext4_unlink+0x142/0x3f0 fs/ext4/namei.c:3432 vfs_unlink+0x23b/0x510 fs/namei.c:3977 do_unlinkat+0x430/0x8b0 fs/namei.c:4042 __do_sys_unlinkat fs/namei.c:4083 [inline] __se_sys_unlinkat fs/namei.c:4076 [inline] __x64_sys_unlinkat+0xcd/0xf0 fs/namei.c:4076 do_syscall_64+0x34/0x70 entry_SYSCALL_64_after_hwframe+0x61/0xc6 RIP: 0033:0x7f12736c9c19 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 14 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffc84aca198 EFLAGS: 00000246 ORIG_RAX: 0000000000000107 RAX: ffffffffffffffda RBX: 0031656c69662f2e RCX: 00007f12736c9c19 RDX: 0000000000000000 RSI: 0000000020000000 RDI: 0000000000000003 RBP: 00007f1273689250 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f12736892e0 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 65ee02ff428f446b ]--- RIP: 0010:kfree+0x269/0x270 mm/slub.c:4184 Code: 08 4c 89 ee 48 89 da e8 d5 64 f2 ff 65 ff 0d 7a 74 5b 7e 0f 85 d2 fd ff ff e8 bf 85 59 ff e9 c8 fd ff ff e8 a9 c0 02 03 0f 0b <0f> 0b 0f 1f 44 00 00 55 48 89 e5 53 48 83 ec 18 89 f2 65 48 8b 04 RSP: 0018:ffffc9000094f780 EFLAGS: 00010246 RAX: ffffea00046ff408 RBX: ffff88810da785a4 RCX: ffffea0004369e00 RDX: 0000000000000000 RSI: 0000000000000012 RDI: ffff88810da785a4 RBP: ffffc9000094f7d8 R08: ffffffff81ed6e69 R09: 0000000000000003 R10: fffff52000129e70 R11: dffffc0000000001 R12: 0000000000000000 R13: ffffffff8197a405 R14: 0000000000000000 R15: ffffea0004369e00 FS: 00005555565cf300(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001000 CR3: 000000011eb9c000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400