Warning: Permanently added '10.128.1.157' (ECDSA) to the list of known hosts. executing program [ 44.037473][ T4052] loop0: detected capacity change from 0 to 2048 [ 44.047476][ T4052] UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2022/11/22 14:59 (1000) [ 44.053386][ T4052] ================================================================== [ 44.055118][ T4052] BUG: KASAN: slab-out-of-bounds in udf_write_aext+0x4c0/0x668 [ 44.056714][ T4052] Write of size 4 at addr ffff0000c2aef3f0 by task syz-executor191/4052 [ 44.058516][ T4052] [ 44.059046][ T4052] CPU: 0 PID: 4052 Comm: syz-executor191 Not tainted 5.15.103-syzkaller #0 [ 44.060898][ T4052] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023 [ 44.063059][ T4052] Call trace: [ 44.063807][ T4052] dump_backtrace+0x0/0x530 [ 44.064802][ T4052] show_stack+0x2c/0x3c [ 44.065668][ T4052] dump_stack_lvl+0x108/0x170 [ 44.066610][ T4052] print_address_description+0x7c/0x3f0 [ 44.067775][ T4052] kasan_report+0x174/0x1e4 [ 44.068759][ T4052] __asan_report_store_n_noabort+0x40/0x4c [ 44.069984][ T4052] udf_write_aext+0x4c0/0x668 [ 44.071063][ T4052] udf_add_entry+0x11e0/0x28b0 [ 44.072087][ T4052] udf_mkdir+0x158/0x7e0 [ 44.073020][ T4052] vfs_mkdir+0x350/0x514 [ 44.073952][ T4052] do_mkdirat+0x20c/0x610 [ 44.074854][ T4052] __arm64_sys_mkdirat+0x90/0xa8 [ 44.075841][ T4052] invoke_syscall+0x98/0x2b8 [ 44.076839][ T4052] el0_svc_common+0x138/0x258 [ 44.077879][ T4052] do_el0_svc+0x58/0x14c [ 44.078719][ T4052] el0_svc+0x7c/0x1f0 [ 44.079603][ T4052] el0t_64_sync_handler+0x84/0xe4 [ 44.080753][ T4052] el0t_64_sync+0x1a0/0x1a4 [ 44.081702][ T4052] [ 44.082185][ T4052] Allocated by task 4052: [ 44.083098][ T4052] ____kasan_kmalloc+0xbc/0xfc [ 44.084108][ T4052] __kasan_kmalloc+0x10/0x1c [ 44.085123][ T4052] kmem_cache_alloc_trace+0x248/0x3b4 [ 44.086299][ T4052] udf_process_sequence+0x170/0x3ed4 [ 44.087449][ T4052] udf_check_anchor_block+0x310/0x5f8 [ 44.088579][ T4052] udf_scan_anchors+0x134/0x594 [ 44.089663][ T4052] udf_load_vrs+0x1b4/0xab8 [ 44.090667][ T4052] udf_fill_super+0x768/0x1a7c [ 44.091697][ T4052] mount_bdev+0x26c/0x368 [ 44.092621][ T4052] udf_mount+0x44/0x58 [ 44.093461][ T4052] legacy_get_tree+0xd4/0x16c [ 44.094459][ T4052] vfs_get_tree+0x90/0x274 [ 44.095459][ T4052] do_new_mount+0x25c/0x8c8 [ 44.096480][ T4052] path_mount+0x590/0x104c [ 44.097427][ T4052] __arm64_sys_mount+0x510/0x5e0 [ 44.098531][ T4052] invoke_syscall+0x98/0x2b8 [ 44.099543][ T4052] el0_svc_common+0x138/0x258 [ 44.100509][ T4052] do_el0_svc+0x58/0x14c [ 44.101339][ T4052] el0_svc+0x7c/0x1f0 [ 44.102246][ T4052] el0t_64_sync_handler+0x84/0xe4 [ 44.103245][ T4052] el0t_64_sync+0x1a0/0x1a4 [ 44.104169][ T4052] [ 44.104679][ T4052] Freed by task 4052: [ 44.105450][ T4052] kasan_set_track+0x4c/0x84 [ 44.106401][ T4052] kasan_set_free_info+0x28/0x4c [ 44.107462][ T4052] ____kasan_slab_free+0x118/0x164 [ 44.108525][ T4052] __kasan_slab_free+0x18/0x28 [ 44.109487][ T4052] slab_free_freelist_hook+0x128/0x1ec [ 44.110643][ T4052] kfree+0x1b0/0x480 [ 44.111494][ T4052] udf_process_sequence+0xd20/0x3ed4 [ 44.112588][ T4052] udf_check_anchor_block+0x310/0x5f8 [ 44.113752][ T4052] udf_scan_anchors+0x134/0x594 [ 44.114791][ T4052] udf_load_vrs+0x1b4/0xab8 [ 44.115745][ T4052] udf_fill_super+0x768/0x1a7c [ 44.116725][ T4052] mount_bdev+0x26c/0x368 [ 44.117685][ T4052] udf_mount+0x44/0x58 [ 44.118590][ T4052] legacy_get_tree+0xd4/0x16c [ 44.119575][ T4052] vfs_get_tree+0x90/0x274 [ 44.120488][ T4052] do_new_mount+0x25c/0x8c8 [ 44.121501][ T4052] path_mount+0x590/0x104c [ 44.122438][ T4052] __arm64_sys_mount+0x510/0x5e0 [ 44.123570][ T4052] invoke_syscall+0x98/0x2b8 [ 44.124530][ T4052] el0_svc_common+0x138/0x258 [ 44.125496][ T4052] do_el0_svc+0x58/0x14c [ 44.126425][ T4052] el0_svc+0x7c/0x1f0 [ 44.127306][ T4052] el0t_64_sync_handler+0x84/0xe4 [ 44.128378][ T4052] el0t_64_sync+0x1a0/0x1a4 [ 44.129443][ T4052] [ 44.129925][ T4052] The buggy address belongs to the object at ffff0000c2aef000 [ 44.129925][ T4052] which belongs to the cache kmalloc-512 of size 512 [ 44.132979][ T4052] The buggy address is located 496 bytes to the right of [ 44.132979][ T4052] 512-byte region [ffff0000c2aef000, ffff0000c2aef200) [ 44.136040][ T4052] The buggy address belongs to the page: [ 44.137280][ T4052] page:00000000c870da77 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x102aec [ 44.139451][ T4052] head:00000000c870da77 order:2 compound_mapcount:0 compound_pincount:0 [ 44.141288][ T4052] flags: 0x5ffc00000010200(slab|head|node=0|zone=2|lastcpupid=0x7ff) [ 44.143076][ T4052] raw: 05ffc00000010200 dead000000000100 dead000000000122 ffff0000c0002600 [ 44.144880][ T4052] raw: 0000000000000000 0000000080100010 00000001ffffffff 0000000000000000 [ 44.146700][ T4052] page dumped because: kasan: bad access detected [ 44.148110][ T4052] [ 44.148596][ T4052] Memory state around the buggy address: [ 44.149832][ T4052] ffff0000c2aef280: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 44.151600][ T4052] ffff0000c2aef300: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 44.153373][ T4052] >ffff0000c2aef380: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc [ 44.155089][ T4052] ^ [ 44.156727][ T4052] ffff0000c2aef400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 44.158476][ T4052] ffff0000c2aef480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 [ 44.160276][ T4052] ================================================================== [ 44.162059][ T4052] Disabling lock debugging due to kernel taint executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program