------------[ cut here ]------------ kernel BUG at fs/buffer.c:2028! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 12379 Comm: syz-executor.5 Not tainted 6.6.0-rc1-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/04/2023 RIP: 0010:iomap_to_bh fs/buffer.c:2028 [inline] RIP: 0010:__block_write_begin_int+0x18f7/0x1a40 fs/buffer.c:2111 Code: 6f 0b 85 ff 48 8b 7c 24 08 48 c7 c6 e0 20 18 8b e8 fe 89 c6 ff 0f 0b e8 57 0b 85 ff eb 13 e8 50 0b 85 ff eb c7 e8 49 0b 85 ff <0f> 0b e8 42 0b 85 ff 48 8b 7c 24 08 48 c7 c6 e0 20 18 8b e8 d1 89 RSP: 0018:ffffc9001490ef20 EFLAGS: 00010246 RAX: ffffffff82089847 RBX: 0000000000200000 RCX: 0000000000040000 RDX: ffffc900128ed000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9001490f0b0 R08: ffffffff820888b2 R09: 1ffff110073ca35c R10: dffffc0000000000 R11: ffffed10073ca35d R12: 0000000000370000 R13: 0000000000000400 R14: 0000000000000000 R15: ffff888039e51ae0 FS: 00007f4cdf3276c0(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffe8293ae68 CR3: 0000000017f22000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_write_begin+0xaf6/0x1f00 fs/iomap/buffered-io.c:772 iomap_write_iter fs/iomap/buffered-io.c:907 [inline] iomap_file_buffered_write+0x587/0x1020 fs/iomap/buffered-io.c:968 blkdev_buffered_write block/fops.c:634 [inline] blkdev_write_iter+0x3f5/0x5b0 block/fops.c:684 do_iter_write+0x84f/0xde0 fs/read_write.c:860 iter_file_splice_write+0x86d/0x1010 fs/splice.c:736 do_splice_from fs/splice.c:933 [inline] direct_splice_actor+0xea/0x1c0 fs/splice.c:1142 splice_direct_to_actor+0x376/0x9e0 fs/splice.c:1088 do_splice_direct+0x2ac/0x3f0 fs/splice.c:1194 do_sendfile+0x623/0x1070 fs/read_write.c:1254 __do_sys_sendfile64 fs/read_write.c:1322 [inline] __se_sys_sendfile64+0x17c/0x1e0 fs/read_write.c:1308 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x41/0xc0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f4cde67cae9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 e1 20 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 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f4cdf3270c8 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 00007f4cde79bf80 RCX: 00007f4cde67cae9 RDX: 0000000000000000 RSI: 0000000000000007 RDI: 0000000000000006 RBP: 00007f4cde6c847a R08: 0000000000000000 R09: 0000000000000000 R10: 0001000000201005 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f4cde79bf80 R15: 00007ffe642487f8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:iomap_to_bh fs/buffer.c:2028 [inline] RIP: 0010:__block_write_begin_int+0x18f7/0x1a40 fs/buffer.c:2111 Code: 6f 0b 85 ff 48 8b 7c 24 08 48 c7 c6 e0 20 18 8b e8 fe 89 c6 ff 0f 0b e8 57 0b 85 ff eb 13 e8 50 0b 85 ff eb c7 e8 49 0b 85 ff <0f> 0b e8 42 0b 85 ff 48 8b 7c 24 08 48 c7 c6 e0 20 18 8b e8 d1 89 RSP: 0018:ffffc9001490ef20 EFLAGS: 00010246 RAX: ffffffff82089847 RBX: 0000000000200000 RCX: 0000000000040000 RDX: ffffc900128ed000 RSI: 000000000003ffff RDI: 0000000000040000 RBP: ffffc9001490f0b0 R08: ffffffff820888b2 R09: 1ffff110073ca35c R10: dffffc0000000000 R11: ffffed10073ca35d R12: 0000000000370000 R13: 0000000000000400 R14: 0000000000000000 R15: ffff888039e51ae0 FS: 00007f4cdf3276c0(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2c0aad7086 CR3: 0000000017f22000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400