UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5407 at fs/udf/truncate.c:226 udf_truncate_extents.cold+0x11/0x18 fs/udf/truncate.c:226 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 5407 Comm: syz-executor.3 Not tainted 4.19.207-syzkaller #0 attempt to access beyond end of device Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x1fc/0x2ef lib/dump_stack.c:118 panic+0x26a/0x50e kernel/panic.c:186 loop3: rw=2049, want=6322, limit=2752 __warn.cold+0x20/0x5a kernel/panic.c:541 report_bug+0x262/0x2b0 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:178 [inline] fixup_bug arch/x86/kernel/traps.c:173 [inline] do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296 attempt to access beyond end of device invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038 loop3: rw=2049, want=6347, limit=2752 RIP: 0010:udf_truncate_extents.cold+0x11/0x18 fs/udf/truncate.c:226 Code: 89 df 48 c7 c6 40 a9 9a 88 e8 ac f9 ff ff 41 bc ea ff ff ff e9 df 70 78 fa e8 19 c6 69 f9 48 c7 c7 60 b4 9a 88 e8 63 db fa ff <0f> 0b e9 ca 91 78 fa e8 01 c6 69 f9 48 c7 c6 40 ba 9a 88 48 c7 c7 attempt to access beyond end of device RSP: 0018:ffff8880967c77c8 EFLAGS: 00010282 RAX: 0000000000000024 RBX: ffff888081fe0120 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff814e0e41 RDI: ffffed1012cf8eeb RBP: ffff8880967c78b0 R08: 0000000000000024 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: ffff8880967c7870 R13: 0000000000000200 R14: 00000000000000ff R15: ffff88809353c400 loop3: rw=2049, want=6363, limit=2752 udf_write_failed.isra.0+0x17b/0x1d0 fs/udf/inode.c:172 attempt to access beyond end of device udf_write_begin+0x89/0xa0 fs/udf/inode.c:208 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170 loop3: rw=2049, want=6371, limit=2752 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295 buffer_io_error: 45 callbacks suppressed Buffer I/O error on dev loop3, logical block 6370, lost async page write udf_file_write_iter+0x2d4/0x4e0 fs/udf/file.c:169 call_write_iter include/linux/fs.h:1821 [inline] do_iter_readv_writev+0x668/0x790 fs/read_write.c:681 attempt to access beyond end of device do_iter_write+0x182/0x5d0 fs/read_write.c:960 vfs_writev+0x153/0x2e0 fs/read_write.c:1005 loop3: rw=2049, want=6373, limit=2752 Buffer I/O error on dev loop3, logical block 6372, lost async page write do_pwritev fs/read_write.c:1094 [inline] __do_sys_pwritev fs/read_write.c:1141 [inline] __se_sys_pwritev fs/read_write.c:1136 [inline] __x64_sys_pwritev+0x22b/0x310 fs/read_write.c:1136 attempt to access beyond end of device loop3: rw=2049, want=6374, limit=2752 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f5708042709 Buffer I/O error on dev loop3, logical block 6373, lost async page write 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 bc ff ff ff f7 d8 64 89 01 48 attempt to access beyond end of device RSP: 002b:00007f57077b9188 EFLAGS: 00000246 ORIG_RAX: 0000000000000128 RAX: ffffffffffffffda RBX: 00007f5708146f60 RCX: 00007f5708042709 RDX: 0000000000000018 RSI: 00000000200006c0 RDI: 0000000000000003 loop3: rw=2049, want=6375, limit=2752 RBP: 00007f570809ccb4 R08: 0000000000000004 R09: 0000000000000000 R10: 000000000400fa7f R11: 0000000000000246 R12: 0000000000000000 Buffer I/O error on dev loop3, logical block 6374, lost async page write R13: 00007ffec881d65f R14: 00007f57077b9300 R15: 0000000000022000 Kernel Offset: disabled Rebooting in 86400 seconds.. ---------------- Code disassembly (best guess), 1 bytes skipped: 0: ff c3 inc %ebx 2: 66 2e 0f 1f 84 00 00 nopw %cs:0x0(%rax,%rax,1) 9: 00 00 00 c: 0f 1f 40 00 nopl 0x0(%rax) 10: 48 89 f8 mov %rdi,%rax 13: 48 89 f7 mov %rsi,%rdi 16: 48 89 d6 mov %rdx,%rsi 19: 48 89 ca mov %rcx,%rdx 1c: 4d 89 c2 mov %r8,%r10 1f: 4d 89 c8 mov %r9,%r8 22: 4c 8b 4c 24 08 mov 0x8(%rsp),%r9 27: 0f 05 syscall * 29: 48 3d 01 f0 ff ff cmp $0xfffffffffffff001,%rax <-- trapping instruction 2f: 73 01 jae 0x32 31: c3 retq 32: 48 c7 c1 bc ff ff ff mov $0xffffffffffffffbc,%rcx 39: f7 d8 neg %eax 3b: 64 89 01 mov %eax,%fs:(%rcx) 3e: 48 rex.W