Hello, syzbot found the following issue on: HEAD commit: 9f7fb8de5d9b Merge tag 'spi-fix-v5.17-rc2' of git://git.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=148d0304700000 kernel config: https://syzkaller.appspot.com/x/.config?x=b4a89edfcc8f7c74 dashboard link: https://syzkaller.appspot.com/bug?extid=c7358a3cd05ee786eb31 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=124e0abfb00000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1758f610700000 Bisection is inconclusive: the issue happens on the oldest tested release. bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=12758738700000 final oops: https://syzkaller.appspot.com/x/report.txt?x=11758738700000 console output: https://syzkaller.appspot.com/x/log.txt?x=16758738700000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+c7358a3cd05ee786eb31@xxxxxxxxxxxxxxxxxxxxxxxxx loop0: detected capacity change from 0 to 1051 EXT4-fs (loop0): ext4_check_descriptors: Checksum for group 0 failed (60935!=0) EXT4-fs (loop0): mounted filesystem without journal. Quota mode: writeback. ------------[ cut here ]------------ kernel BUG at fs/ext4/extents_status.c:899! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 3587 Comm: syz-executor288 Not tainted 5.17.0-rc2-syzkaller-00039-g9f7fb8de5d9b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:ext4_es_cache_extent+0x4e8/0x550 fs/ext4/extents_status.c:899 Code: 00 48 c7 c7 e0 6c c1 89 c6 05 71 25 6f 0b 01 e8 b0 b6 f6 06 e9 5a ff ff ff e8 94 9d 68 ff 0f 0b e9 d7 fc ff ff e8 88 9d 68 ff <0f> 0b e8 81 9d 68 ff 0f 0b e9 13 fe ff ff e8 25 df af ff e9 c2 fb RSP: 0018:ffffc90001abee80 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000000013de RCX: 0000000000000000 RDX: ffff88807deb0000 RSI: ffffffff820fd0f8 RDI: 0000000000000003 RBP: ffff888074e6f048 R08: 00000000ffffffff R09: 0000000000000000 R10: ffffffff820fce3c R11: 0000000000000000 R12: 0000000000000001 R13: 00000000ffffffff R14: 1ffff92000357dd1 R15: 00008f1cffffffff FS: 0000555556ad6300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f117149e4b0 CR3: 000000007cc1f000 CR4: 0000000000350ee0 Call Trace: <TASK> ext4_cache_extents+0x13e/0x2d0 fs/ext4/extents.c:518 ext4_find_extent+0x8f6/0xd10 fs/ext4/extents.c:916 ext4_ext_map_blocks+0x1e2/0x5f30 fs/ext4/extents.c:4098 ext4_map_blocks+0x9ca/0x18a0 fs/ext4/inode.c:563 ext4_getblk+0x553/0x6b0 fs/ext4/inode.c:849 ext4_bread_batch+0x7c/0x550 fs/ext4/inode.c:923 __ext4_find_entry+0x482/0x1050 fs/ext4/namei.c:1600 ext4_lookup_entry fs/ext4/namei.c:1701 [inline] ext4_lookup fs/ext4/namei.c:1769 [inline] ext4_lookup+0x4fc/0x730 fs/ext4/namei.c:1760 __lookup_slow+0x24c/0x480 fs/namei.c:1707 lookup_slow fs/namei.c:1724 [inline] walk_component+0x40f/0x6a0 fs/namei.c:2020 link_path_walk.part.0+0x7ef/0xf70 fs/namei.c:2347 link_path_walk fs/namei.c:2272 [inline] path_openat+0x266/0x2940 fs/namei.c:3605 do_filp_open+0x1aa/0x400 fs/namei.c:3636 do_sys_openat2+0x16d/0x4d0 fs/open.c:1214 do_sys_open fs/open.c:1230 [inline] __do_sys_openat fs/open.c:1246 [inline] __se_sys_openat fs/open.c:1241 [inline] __x64_sys_openat+0x13f/0x1f0 fs/open.c:1241 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f8e44f22f19 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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:00007fff98aa3238 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8e44f22f19 RDX: 000000000000c880 RSI: 0000000020000100 RDI: 0000000000000005 RBP: 00007f8e44ee27b0 R08: 0000000800000015 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f8e44ee2840 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 </TASK> Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ext4_es_cache_extent+0x4e8/0x550 fs/ext4/extents_status.c:899 Code: 00 48 c7 c7 e0 6c c1 89 c6 05 71 25 6f 0b 01 e8 b0 b6 f6 06 e9 5a ff ff ff e8 94 9d 68 ff 0f 0b e9 d7 fc ff ff e8 88 9d 68 ff <0f> 0b e8 81 9d 68 ff 0f 0b e9 13 fe ff ff e8 25 df af ff e9 c2 fb RSP: 0018:ffffc90001abee80 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000000013de RCX: 0000000000000000 RDX: ffff88807deb0000 RSI: ffffffff820fd0f8 RDI: 0000000000000003 RBP: ffff888074e6f048 R08: 00000000ffffffff R09: 0000000000000000 R10: ffffffff820fce3c R11: 0000000000000000 R12: 0000000000000001 R13: 00000000ffffffff R14: 1ffff92000357dd1 R15: 00008f1cffffffff FS: 0000555556ad6300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f117149e4b0 CR3: 000000007cc1f000 CR4: 0000000000350ee0 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
