------------[ cut here ]------------ kernel BUG at fs/ocfs2/aops.c:1158! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 1 UID: 0 PID: 7869 Comm: syz.1.438 Not tainted 6.16.0-rc7-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1158 [inline] RIP: 0010:ocfs2_write_cluster_by_desc fs/ocfs2/aops.c:1218 [inline] RIP: 0010:ocfs2_write_begin_nolock+0x5ad0/0x6850 fs/ocfs2/aops.c:1795 Code: ff e8 44 0f 7d fe e9 b7 e8 ff ff e8 0a 0f 7d fe e9 e5 e8 ff ff 48 8b 7c 24 18 e8 2b 0f 7d fe e9 41 e8 ff ff e8 21 b1 18 fe 90 <0f> 0b e8 89 0e 7d fe e9 64 e9 ff ff 48 8b 7c 24 18 e8 0a 0f 7d fe RSP: 0018:ffffc90002f56a68 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff83a31eb1 RDX: ffff88807977da00 RSI: ffffffff83a3369f RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888047f54178 R13: ffff88804ea98000 R14: 0000000000000000 R15: 0000000000000005 FS: 00007f28d5d926c0(0000) GS:ffff888124827000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00001ffffffffec0 CR3: 0000000046793000 CR4: 0000000000350ef0 Call Trace: ocfs2_write_begin+0x1cb/0x340 fs/ocfs2/aops.c:1882 generic_perform_write+0x3d0/0x930 mm/filemap.c:4112 __generic_file_write_iter+0x1f7/0x240 mm/filemap.c:4229 ocfs2_file_write_iter+0xbc4/0x21b0 fs/ocfs2/file.c:2469 __kernel_write_iter+0x31a/0xa90 fs/read_write.c:619 dump_emit_page fs/coredump.c:1112 [inline] dump_user_range+0x41f/0xb60 fs/coredump.c:1186 elf_core_dump+0x288a/0x3a90 fs/binfmt_elf.c:2075 do_coredump+0x399f/0x4f10 fs/coredump.c:950 get_signal+0x22e3/0x26d0 kernel/signal.c:3019 arch_do_signal_or_restart+0x8f/0x7d0 arch/x86/kernel/signal.c:337 exit_to_user_mode_loop kernel/entry/common.c:111 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] irqentry_exit_to_user_mode+0x12a/0x270 kernel/entry/common.c:184 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0033:0x0 Code: Unable to access opcode bytes at 0xffffffffffffffd6. RSP: 002b:0000200000000088 EFLAGS: 00010217 RAX: 0000000000000000 RBX: 00007f28d51b5fa0 RCX: 00007f28d4f8e9a9 RDX: 0000200000000100 RSI: 0000200000000080 RDI: 0000000004000000 RBP: 00007f28d5010d69 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f28d51b5fa0 R15: 00007fff5300b1d8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:ocfs2_write_cluster fs/ocfs2/aops.c:1158 [inline] RIP: 0010:ocfs2_write_cluster_by_desc fs/ocfs2/aops.c:1218 [inline] RIP: 0010:ocfs2_write_begin_nolock+0x5ad0/0x6850 fs/ocfs2/aops.c:1795 Code: ff e8 44 0f 7d fe e9 b7 e8 ff ff e8 0a 0f 7d fe e9 e5 e8 ff ff 48 8b 7c 24 18 e8 2b 0f 7d fe e9 41 e8 ff ff e8 21 b1 18 fe 90 <0f> 0b e8 89 0e 7d fe e9 64 e9 ff ff 48 8b 7c 24 18 e8 0a 0f 7d fe RSP: 0018:ffffc90002f56a68 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff83a31eb1 RDX: ffff88807977da00 RSI: ffffffff83a3369f RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888047f54178 R13: ffff88804ea98000 R14: 0000000000000000 R15: 0000000000000005 FS: 00007f28d5d926c0(0000) GS:ffff888124827000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00001ffffffffec0 CR3: 0000000046793000 CR4: 0000000000350ef0