------------[ cut here ]------------ kernel BUG at fs/ocfs2/aops.c:1159! Oops: invalid opcode: 0000 [#1] SMP KASAN PTI CPU: 1 UID: 0 PID: 15267 Comm: syz.5.1310 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025 RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1159 [inline] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 fs/ocfs2/aops.c:1219 Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 9d 7b 9d 8d ba 6a 04 00 00 48 c7 c1 60 df cb 8b e8 58 70 1b 00 90 0f 0b e8 c0 0c 1e fe 90 <0f> 0b e8 b8 0c 1e fe 90 0f 0b e8 b0 0c 1e fe 90 0f 0b e8 a8 0c 1e RSP: 0018:ffffc900148a5d20 EFLAGS: 00010293 RAX: ffffffff83a3aba0 RBX: ffff88807de8a014 RCX: ffff888027e9db80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900148a6050 R08: ffff8880336ddca3 R09: 1ffff110066dbb94 R10: dffffc0000000000 R11: ffffed10066dbb95 R12: ffff888076f44000 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807de8a014 FS: 00007fbec50606c0(0000) GS:ffff888125d25000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f93e2de7dac CR3: 0000000030ce0000 CR4: 00000000003526f0 Call Trace: ocfs2_write_begin_nolock+0x3180/0x4300 fs/ocfs2/aops.c:1796 ocfs2_write_begin+0x1bb/0x310 fs/ocfs2/aops.c:1884 generic_perform_write+0x2c5/0x900 mm/filemap.c:4314 ocfs2_file_write_iter+0x1582/0x1cf0 fs/ocfs2/file.c:2475 __kernel_write_iter+0x428/0x910 fs/read_write.c:619 dump_emit_page fs/coredump.c:1298 [inline] dump_user_range+0x8a0/0xc90 fs/coredump.c:1372 elf_core_dump+0x3369/0x3960 fs/binfmt_elf.c:2111 coredump_write+0x1121/0x18b0 fs/coredump.c:1049 do_coredump fs/coredump.c:1126 [inline] vfs_coredump+0x3321/0x3e60 fs/coredump.c:1200 get_signal+0x1108/0x1340 kernel/signal.c:3019 arch_do_signal_or_restart+0x9a/0x7a0 arch/x86/kernel/signal.c:337 __exit_to_user_mode_loop kernel/entry/common.c:41 [inline] exit_to_user_mode_loop kernel/entry/common.c:75 [inline] __exit_to_user_mode_prepare include/linux/irq-entry-common.h:226 [inline] irqentry_exit_to_user_mode_prepare include/linux/irq-entry-common.h:270 [inline] irqentry_exit_to_user_mode include/linux/irq-entry-common.h:339 [inline] irqentry_exit+0x177/0x660 kernel/entry/common.c:196 exc_page_fault+0xab/0x100 arch/x86/mm/fault.c:1535 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:618 RIP: 0033:0x7fbec418f751 Code: 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 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f RSP: 002b:0000000000000060 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007fbec43e6180 RCX: 00007fbec418f749 RDX: 0000000000000000 RSI: 0000000000000060 RDI: 0000000000000600 RBP: 00007fbec4213f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 00007fbec43e6218 R14: 00007fbec43e6180 R15: 00007ffc47a0a578 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1159 [inline] RIP: 0010:ocfs2_write_cluster_by_desc+0x1cc1/0x1cf0 fs/ocfs2/aops.c:1219 Code: 03 48 8d bc 24 10 02 00 00 48 c7 c6 9d 7b 9d 8d ba 6a 04 00 00 48 c7 c1 60 df cb 8b e8 58 70 1b 00 90 0f 0b e8 c0 0c 1e fe 90 <0f> 0b e8 b8 0c 1e fe 90 0f 0b e8 b0 0c 1e fe 90 0f 0b e8 a8 0c 1e RSP: 0018:ffffc900148a5d20 EFLAGS: 00010293 RAX: ffffffff83a3aba0 RBX: ffff88807de8a014 RCX: ffff888027e9db80 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc900148a6050 R08: ffff8880336ddca3 R09: 1ffff110066dbb94 R10: dffffc0000000000 R11: ffffed10066dbb95 R12: ffff888076f44000 R13: dffffc0000000000 R14: 0000000000000000 R15: ffff88807de8a014 FS: 00007fbec50606c0(0000) GS:ffff888125d25000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000110c3da8c0 CR3: 0000000030ce0000 CR4: 00000000003526f0