------------[ cut here ]------------ kernel BUG at fs/buffer.c:2717! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 1553 Comm: syz-executor.5 Not tainted 6.1.25-syzkaller-00068-g60662882b7bd #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:submit_bh_wbc+0x4e2/0x4f0 fs/buffer.c:2717 Code: d4 4b e7 ff e9 b0 fe ff ff e8 9a 63 a1 ff 0f 0b e8 93 63 a1 ff 0f 0b e8 8c 63 a1 ff 0f 0b e8 85 63 a1 ff 0f 0b e8 7e 63 a1 ff <0f> 0b e8 77 63 a1 ff 0f 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 RSP: 0018:ffffc9000b086e10 EFLAGS: 00010287 RAX: ffffffff81d26032 RBX: 0000000000000800 RCX: 0000000000040000 RDX: ffffc90002a7d000 RSI: 0000000000002827 RDI: 0000000000002828 RBP: ffffc9000b086e60 R08: ffffffff81d25cb0 R09: ffffed102a989094 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000814 R13: 1ffff1102a989093 R14: ffff888154c48498 R15: 0000000000000000 FS: 00007fe85794b700(0000) GS:ffff8881f7000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32825000 CR3: 000000013bbf2000 CR4: 00000000003506b0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: submit_bh+0x1d/0x30 fs/buffer.c:2755 __ext4_read_bh fs/ext4/super.c:175 [inline] ext4_read_bh+0x1b2/0x250 fs/ext4/super.c:199 ext4_read_bh_lock+0x99/0xb0 fs/ext4/super.c:214 __ext4_block_zero_page_range fs/ext4/inode.c:3786 [inline] ext4_block_zero_page_range+0x5d2/0x9f0 fs/ext4/inode.c:3853 ext4_block_truncate_page fs/ext4/inode.c:3877 [inline] ext4_truncate+0x89b/0xfb0 fs/ext4/inode.c:4254 ext4_truncate_failed_write fs/ext4/truncate.h:22 [inline] ext4_write_begin+0xa76/0xfb0 fs/ext4/inode.c:1263 ext4_da_write_begin+0x2ff/0x920 fs/ext4/inode.c:2987 generic_perform_write+0x2f9/0x5c0 mm/filemap.c:3765 ext4_buffered_write_iter+0x360/0x640 fs/ext4/file.c:285 ext4_file_write_iter+0x194/0x1cf0 do_iter_write+0x6e6/0xc50 fs/read_write.c:861 vfs_iter_write+0x7c/0xa0 fs/read_write.c:902 iter_file_splice_write+0x7f8/0xf90 fs/splice.c:686 do_splice_from fs/splice.c:764 [inline] direct_splice_actor+0xff/0x130 fs/splice.c:931 splice_direct_to_actor+0x4b4/0xbb0 fs/splice.c:886 do_splice_direct+0x27f/0x3c0 fs/splice.c:974 do_sendfile+0x616/0xfe0 fs/read_write.c:1255 __do_sys_sendfile64 fs/read_write.c:1323 [inline] __se_sys_sendfile64 fs/read_write.c:1309 [inline] __x64_sys_sendfile64+0x1ce/0x230 fs/read_write.c:1309 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: 0033:0x7fe856c8c149 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:00007fe85794b168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007fe856dabf80 RCX: 00007fe856c8c149 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 00007fe856ce7cad R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffeeaae6ddf R14: 00007fe85794b300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:submit_bh_wbc+0x4e2/0x4f0 fs/buffer.c:2717 Code: d4 4b e7 ff e9 b0 fe ff ff e8 9a 63 a1 ff 0f 0b e8 93 63 a1 ff 0f 0b e8 8c 63 a1 ff 0f 0b e8 85 63 a1 ff 0f 0b e8 7e 63 a1 ff <0f> 0b e8 77 63 a1 ff 0f 0b 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 RSP: 0018:ffffc9000b086e10 EFLAGS: 00010287 RAX: ffffffff81d26032 RBX: 0000000000000800 RCX: 0000000000040000 RDX: ffffc90002a7d000 RSI: 0000000000002827 RDI: 0000000000002828 RBP: ffffc9000b086e60 R08: ffffffff81d25cb0 R09: ffffed102a989094 R10: 0000000000000000 R11: dffffc0000000001 R12: 0000000000000814 R13: 1ffff1102a989093 R14: ffff888154c48498 R15: 0000000000000000 FS: 00007fe85794b700(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32826000 CR3: 000000013bbf2000 CR4: 00000000003506a0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400