Warning: Permanently added '10.128.0.3' (ECDSA) to the list of known hosts. executing program [ 28.929313] UDF-fs: error (device loop0): udf_read_tagged: tag checksum failed, block 96: 0x73 != 0x9b [ 28.939280] UDF-fs: error (device loop0): udf_process_sequence: Block 96 of volume descriptor sequence is corrupted or we could not read it [ 28.956625] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 28.967717] audit: type=1800 audit(1673206956.688:2): pid=7984 uid=0 auid=4294967295 ses=4294967295 op="collect_data" cause="failed(directio)" comm="syz-executor208" name="bus" dev="loop0" ino=861 res=0 [ 29.034615] ================================================================== [ 29.042057] BUG: KASAN: use-after-free in udf_close_lvid.isra.0+0x5a1/0x630 [ 29.049136] Write of size 1 at addr ffff8881aafbac88 by task syz-executor208/7983 [ 29.056733] [ 29.058364] CPU: 0 PID: 7983 Comm: syz-executor208 Not tainted 4.14.302-syzkaller #0 [ 29.066224] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 29.075551] Call Trace: [ 29.078115] dump_stack+0x1b2/0x281 [ 29.081718] print_address_description.cold+0x54/0x1d3 [ 29.086990] kasan_report_error.cold+0x8a/0x191 [ 29.091635] ? udf_close_lvid.isra.0+0x5a1/0x630 [ 29.096362] __asan_report_store1_noabort+0x68/0x70 [ 29.101358] ? udf_close_lvid.isra.0+0x5a1/0x630 [ 29.106105] udf_close_lvid.isra.0+0x5a1/0x630 [ 29.110673] ? init_once+0x40/0x40 [ 29.114194] ? iput+0x16/0x7e0 [ 29.117362] ? dispose_list+0x1e0/0x1e0 [ 29.121317] udf_put_super+0x211/0x2a0 [ 29.125187] ? udf_sb_free_partitions.isra.0+0xaf0/0xaf0 [ 29.130611] generic_shutdown_super+0x144/0x370 [ 29.135262] kill_block_super+0x95/0xe0 [ 29.139225] deactivate_locked_super+0x6c/0xd0 [ 29.143786] deactivate_super+0x7f/0xa0 [ 29.147742] cleanup_mnt+0x186/0x2c0 [ 29.151437] task_work_run+0x11f/0x190 [ 29.155305] exit_to_usermode_loop+0x1ad/0x200 [ 29.159864] do_syscall_64+0x4a3/0x640 [ 29.163736] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 29.168939] RIP: 0033:0x7f19fbee3e97 [ 29.172626] RSP: 002b:00007ffffd1de588 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 29.180318] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f19fbee3e97 [ 29.187569] RDX: 00007ffffd1de649 RSI: 000000000000000a RDI: 00007ffffd1de640 [ 29.194822] RBP: 00007ffffd1de640 R08: 00000000ffffffff R09: 00007ffffd1de420 [ 29.202065] R10: 0000555555821683 R11: 0000000000000206 R12: 00007ffffd1df6b0 [ 29.209319] R13: 00005555558215f0 R14: 00007ffffd1de5b0 R15: 0000000000000001 [ 29.216568] [ 29.218167] The buggy address belongs to the page: [ 29.223069] page:ffffea0006abee80 count:0 mapcount:0 mapping: (null) index:0x0 [ 29.231267] flags: 0x57ff00000000000() [ 29.235128] raw: 057ff00000000000 0000000000000000 0000000000000000 00000000ffffffff [ 29.242984] raw: ffffea0006abeea0 ffffea0006abeea0 0000000000000000 0000000000000000 [ 29.250833] page dumped because: kasan: bad access detected [ 29.256511] [ 29.258115] Memory state around the buggy address: [ 29.263015] ffff8881aafbab80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 29.270345] ffff8881aafbac00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 29.277676] >ffff8881aafbac80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 29.285005] ^ [ 29.288601] ffff8881aafbad00: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 29.295938] ffff8881aafbad80: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff [ 29.303264] ================================================================== [ 29.310678] Disabling lock debugging due to kernel taint [ 29.316681] Kernel panic - not syncing: panic_on_warn set ... [ 29.316681] [ 29.324049] CPU: 0 PID: 7983 Comm: syz-executor208 Tainted: G B 4.14.302-syzkaller #0 [ 29.333125] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 29.342458] Call Trace: [ 29.345021] dump_stack+0x1b2/0x281 [ 29.348621] panic+0x1f9/0x42d [ 29.351782] ? add_taint.cold+0x16/0x16 [ 29.355728] ? ___preempt_schedule+0x16/0x18 [ 29.360109] kasan_end_report+0x43/0x49 [ 29.364059] kasan_report_error.cold+0xa7/0x191 [ 29.368704] ? udf_close_lvid.isra.0+0x5a1/0x630 [ 29.373430] __asan_report_store1_noabort+0x68/0x70 [ 29.378421] ? udf_close_lvid.isra.0+0x5a1/0x630 [ 29.383504] udf_close_lvid.isra.0+0x5a1/0x630 [ 29.388056] ? init_once+0x40/0x40 [ 29.391567] ? iput+0x16/0x7e0 [ 29.394729] ? dispose_list+0x1e0/0x1e0 [ 29.398676] udf_put_super+0x211/0x2a0 [ 29.402534] ? udf_sb_free_partitions.isra.0+0xaf0/0xaf0 [ 29.407954] generic_shutdown_super+0x144/0x370 [ 29.412595] kill_block_super+0x95/0xe0 [ 29.416538] deactivate_locked_super+0x6c/0xd0 [ 29.421087] deactivate_super+0x7f/0xa0 [ 29.425032] cleanup_mnt+0x186/0x2c0 [ 29.428720] task_work_run+0x11f/0x190 [ 29.432582] exit_to_usermode_loop+0x1ad/0x200 [ 29.437134] do_syscall_64+0x4a3/0x640 [ 29.440994] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 29.446152] RIP: 0033:0x7f19fbee3e97 [ 29.449833] RSP: 002b:00007ffffd1de588 EFLAGS: 00000206 ORIG_RAX: 00000000000000a6 [ 29.457514] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f19fbee3e97 [ 29.464755] RDX: 00007ffffd1de649 RSI: 000000000000000a RDI: 00007ffffd1de640 [ 29.471995] RBP: 00007ffffd1de640 R08: 00000000ffffffff R09: 00007ffffd1de420 [ 29.479237] R10: 0000555555821683 R11: 0000000000000206 R12: 00007ffffd1df6b0 [ 29.486504] R13: 00005555558215f0 R14: 00007ffffd1de5b0 R15: 0000000000000001 [ 29.493822] Kernel Offset: disabled [ 29.497432] Rebooting in 86400 seconds..