RAX: ffffffffffffffda RBX: 00007fd76f948fa0 RCX: 00007fd76f6cf799
RDX: 00000000200000c1 RSI: 00002000000000c0 RDI: 0000000000000006
RBP: 00007fd76f765bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000009000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd76f949038 R14: 00007fd76f948fa0 R15: 00007ffee1dd4d48
---[ end trace bcc30c760e73982f ]---
------------[ cut here ]------------
kernel BUG at fs/ext4/extents_status.c:874!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 1178 Comm: syz.2.147 Tainted: G        W         syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:ext4_es_insert_extent+0x2a1e/0x2b30 fs/ext4/extents_status.c:874
Code: e8 73 d2 ff e9 d1 d8 ff ff e8 ee f2 97 ff 0f 0b e8 e7 f2 97 ff 0f 0b e8 e0 f2 97 ff 0f 0b e8 d9 f2 97 ff 0f 0b e8 d2 f2 97 ff <0f> 0b 65 8b 05 c9 4d 35 7e 41 89 c7 c1 e8 06 48 8d 3c c5 e8 71 c3
RSP: 0018:ffffc90002596cc0 EFLAGS: 00010293
RAX: ffffffff81ccc37e RBX: ffff88810f6d3000 RCX: ffff8881103ecf00
RDX: 0000000000000000 RSI: 000000000000004d RDI: 000000000000004b
RBP: ffffc90002596e30 R08: ffffc90002596d97 R09: ffffc90002596d80
R10: dffffc0000000000 R11: fffff520004b2db3 R12: ffff888111cab000
R13: 0000000000000000 R14: 000000000000004d R15: 000000000000004b
FS:  00007fd76f5326c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd76f511d58 CR3: 0000000129de6000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ext4_ext_determine_insert_hole fs/ext4/extents.c:4116 [inline]
 ext4_ext_map_blocks+0x1ebb/0x5dd0 fs/ext4/extents.c:4243
 ext4_map_blocks+0x3b1/0x1bd0 fs/ext4/inode.c:601
 ext4_convert_unwritten_extents+0x227/0x400 fs/ext4/extents.c:4862
 ext4_convert_unwritten_io_end_vec+0x103/0x180 fs/ext4/extents.c:4901
 ext4_put_io_end+0xc4/0x260 fs/ext4/page-io.c:310
 ext4_writepages+0x10d9/0x2eb0 fs/ext4/inode.c:2906
 do_writepages+0x128/0x280 mm/page-writeback.c:2380
 __filemap_fdatawrite_range+0x2a0/0x350 mm/filemap.c:427
 file_write_and_wait_range+0x8c/0x110 mm/filemap.c:766
 ext4_sync_file+0x1a9/0x9f0 fs/ext4/fsync.c:151
 vfs_fsync_range+0x190/0x1a0 fs/sync.c:202
 generic_write_sync include/linux/fs.h:2920 [inline]
 ext4_buffered_write_iter+0x59b/0x640 fs/ext4/file.c:278
 ext4_file_write_iter+0x53f/0x1980 fs/ext4/file.c:-1
 call_write_iter include/linux/fs.h:2066 [inline]
 new_sync_write fs/read_write.c:518 [inline]
 vfs_write+0x758/0xdc0 fs/read_write.c:605
 ksys_pwrite64 fs/read_write.c:712 [inline]
 __do_sys_pwrite64 fs/read_write.c:722 [inline]
 __se_sys_pwrite64 fs/read_write.c:719 [inline]
 __x64_sys_pwrite64+0x197/0x220 fs/read_write.c:719
 do_syscall_64+0x31/0x40 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
RIP: 0033:0x7fd76f6cf799
Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fd76f532028 EFLAGS: 00000246 ORIG_RAX: 0000000000000012
RAX: ffffffffffffffda RBX: 00007fd76f948fa0 RCX: 00007fd76f6cf799
RDX: 00000000200000c1 RSI: 00002000000000c0 RDI: 0000000000000006
RBP: 00007fd76f765bd9 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000009000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fd76f949038 R14: 00007fd76f948fa0 R15: 00007ffee1dd4d48
Modules linked in:
---[ end trace bcc30c760e739830 ]---
RIP: 0010:ext4_es_insert_extent+0x2a1e/0x2b30 fs/ext4/extents_status.c:874
Code: e8 73 d2 ff e9 d1 d8 ff ff e8 ee f2 97 ff 0f 0b e8 e7 f2 97 ff 0f 0b e8 e0 f2 97 ff 0f 0b e8 d9 f2 97 ff 0f 0b e8 d2 f2 97 ff <0f> 0b 65 8b 05 c9 4d 35 7e 41 89 c7 c1 e8 06 48 8d 3c c5 e8 71 c3
RSP: 0018:ffffc90002596cc0 EFLAGS: 00010293
RAX: ffffffff81ccc37e RBX: ffff88810f6d3000 RCX: ffff8881103ecf00
RDX: 0000000000000000 RSI: 000000000000004d RDI: 000000000000004b
RBP: ffffc90002596e30 R08: ffffc90002596d97 R09: ffffc90002596d80
R10: dffffc0000000000 R11: fffff520004b2db3 R12: ffff888111cab000
R13: 0000000000000000 R14: 000000000000004d R15: 000000000000004b
FS:  00007fd76f5326c0(0000) GS:ffff8881f7100000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd76f511d58 CR3: 0000000129de6000 CR4: 00000000003506a0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400