netlink: 4 bytes leftover after parsing attributes in process `syz.0.0'. netlink: 'syz.0.0': attribute type 13 has an invalid length. netlink: 'syz.0.0': attribute type 14 has an invalid length. netdevsim netdevsim0 netdevsim0: set [0, 0] type 1 family 0 port 8472 - 0 netdevsim netdevsim0 netdevsim1: set [0, 0] type 1 family 0 port 8472 - 0 netdevsim netdevsim0 netdevsim2: set [0, 0] type 1 family 0 port 8472 - 0 netdevsim netdevsim0 netdevsim3: set [0, 0] type 1 family 0 port 8472 - 0 vxlan0: entered promiscuous mode (syz.0.0,5325,0):__ocfs2_journal_access:705 ERROR: Error -30 getting 1 access to buffer! (syz.0.0,5325,0):ocfs2_write_end_nolock:1942 ERROR: status = -30 (syz.0.0,5325,0):ocfs2_commit_trans:382 ERROR: status = -5 ------------[ cut here ]------------ kernel BUG at fs/ocfs2/mmap.c:107! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5325 Comm: syz.0.0 Not tainted 6.15.0-rc1-syzkaller-00173-g0c7cae12f67c #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:107 [inline] RIP: 0010:ocfs2_page_mkwrite+0xda1/0xdb0 fs/ocfs2/mmap.c:144 Code: ff df 4d 89 fc e9 85 f3 ff ff 48 ff cb e8 37 05 f9 fd 49 89 dc 49 be 00 00 00 00 00 fc ff df e9 6b f3 ff ff e8 20 05 f9 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d32ee40 EFLAGS: 00010283 RAX: ffffffff83ca5010 RBX: 00000000ffffffe2 RCX: 0000000000100000 RDX: ffffc9000eafb000 RSI: 00000000000020d4 RDI: 00000000000020d5 RBP: ffffc9000d32f000 R08: ffffffff83ca4e02 R09: 1ffffffff20bfc0e R10: dffffc0000000000 R11: fffffbfff20bfc0f R12: 0000000000001000 R13: 0000000000002000 R14: ffffea0001369c80 R15: 0000000000000000 FS: 00007fa25614e6c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000002000 CR3: 0000000036ec2000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: do_page_mkwrite+0x159/0x340 mm/memory.c:3287 wp_page_shared mm/memory.c:3688 [inline] do_wp_page+0x2bbc/0x5e00 mm/memory.c:3907 handle_pte_fault+0xfaf/0x61c0 mm/memory.c:6013 __handle_mm_fault mm/memory.c:6140 [inline] handle_mm_fault+0x1129/0x1bf0 mm/memory.c:6309 do_user_addr_fault arch/x86/mm/fault.c:1388 [inline] handle_page_fault arch/x86/mm/fault.c:1480 [inline] exc_page_fault+0x2bb/0x920 arch/x86/mm/fault.c:1538 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623 RIP: 0010:filldir+0x2c4/0x6a0 fs/readdir.c:292 Code: 87 55 02 00 00 0f 01 cb 0f ae e8 48 8b 44 24 30 49 89 46 08 48 8b 4c 24 10 48 8b 44 24 60 48 89 01 48 8b 44 24 18 8b 6c 24 3c <66> 89 41 10 48 98 40 88 6c 01 ff 48 89 44 24 30 4d 63 f5 42 c6 44 RSP: 0018:ffffc9000d32f980 EFLAGS: 00050283 RAX: 0000000000000020 RBX: 0000200000002010 RCX: 0000200000001ff0 RDX: ffffc9000eafb000 RSI: 0000200000001fd8 RDI: 0000200000002010 RBP: 0000000000000004 R08: ffffffff8245323d R09: 1ffff110001cf488 R10: dffffc0000000000 R11: ffffed10001cf489 R12: ffff8880407422f4 R13: 000000000000000a R14: 0000200000001fd8 R15: 00007ffffffff000 dir_emit include/linux/fs.h:3861 [inline] ocfs2_dir_foreach_blk_id fs/ocfs2/dir.c:1805 [inline] ocfs2_dir_foreach_blk+0x161b/0x1b30 fs/ocfs2/dir.c:1925 ocfs2_readdir+0x2b1/0x5e0 fs/ocfs2/dir.c:1969 wrap_directory_iterator+0x91/0xd0 fs/readdir.c:65 iterate_dir+0x5a9/0x760 fs/readdir.c:108 __do_sys_getdents fs/readdir.c:322 [inline] __se_sys_getdents+0x1ff/0x4e0 fs/readdir.c:308 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa25538d169 Code: ff ff c3 66 2e 0f 1f 84 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 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fa25614e038 EFLAGS: 00000246 ORIG_RAX: 000000000000004e RAX: ffffffffffffffda RBX: 00007fa2555a6080 RCX: 00007fa25538d169 RDX: 00000000000000b8 RSI: 0000200000001fc0 RDI: 000000000000000a RBP: 00007fa25540e990 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fa2555a6080 R15: 00007ffee8e208a8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__ocfs2_page_mkwrite fs/ocfs2/mmap.c:107 [inline] RIP: 0010:ocfs2_page_mkwrite+0xda1/0xdb0 fs/ocfs2/mmap.c:144 Code: ff df 4d 89 fc e9 85 f3 ff ff 48 ff cb e8 37 05 f9 fd 49 89 dc 49 be 00 00 00 00 00 fc ff df e9 6b f3 ff ff e8 20 05 f9 fd 90 <0f> 0b 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 90 90 90 90 90 90 90 RSP: 0018:ffffc9000d32ee40 EFLAGS: 00010283 RAX: ffffffff83ca5010 RBX: 00000000ffffffe2 RCX: 0000000000100000 RDX: ffffc9000eafb000 RSI: 00000000000020d4 RDI: 00000000000020d5 RBP: ffffc9000d32f000 R08: ffffffff83ca4e02 R09: 1ffffffff20bfc0e R10: dffffc0000000000 R11: fffffbfff20bfc0f R12: 0000000000001000 R13: 0000000000002000 R14: ffffea0001369c80 R15: 0000000000000000 FS: 00007fa25614e6c0(0000) GS:ffff88808c596000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000200000002000 CR3: 0000000036ec2000 CR4: 0000000000352ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 87 55 02 xchg %edx,0x2(%rbp) 3: 00 00 add %al,(%rax) 5: 0f 01 cb stac 8: 0f ae e8 lfence b: 48 8b 44 24 30 mov 0x30(%rsp),%rax 10: 49 89 46 08 mov %rax,0x8(%r14) 14: 48 8b 4c 24 10 mov 0x10(%rsp),%rcx 19: 48 8b 44 24 60 mov 0x60(%rsp),%rax 1e: 48 89 01 mov %rax,(%rcx) 21: 48 8b 44 24 18 mov 0x18(%rsp),%rax 26: 8b 6c 24 3c mov 0x3c(%rsp),%ebp * 2a: 66 89 41 10 mov %ax,0x10(%rcx) <-- trapping instruction 2e: 48 98 cltq 30: 40 88 6c 01 ff mov %bpl,-0x1(%rcx,%rax,1) 35: 48 89 44 24 30 mov %rax,0x30(%rsp) 3a: 4d 63 f5 movslq %r13d,%r14 3d: 42 rex.X 3e: c6 .byte 0xc6 3f: 44 rex.R