UDF-fs: error (device loop3): udf_process_sequence: Primary Volume Descriptor not found! UDF-fs: INFO Mounting volume 'LinuxUDF', timestamp 2020/09/19 18:44 (1000) UDF-fs: error (device loop3): udf_read_inode: (ino 1344) failed !bh ===================================================== BUG: KMSAN: uninit-value in udf_evict_inode+0x382/0x7d0 fs/udf/inode.c:150 CPU: 1 PID: 25198 Comm: syz-executor.3 Not tainted 5.9.0-rc4-syzkaller #0 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+0x21c/0x280 lib/dump_stack.c:118 kmsan_report+0xf7/0x1e0 mm/kmsan/kmsan_report.c:122 __msan_warning+0x58/0xa0 mm/kmsan/kmsan_instr.c:219 udf_evict_inode+0x382/0x7d0 fs/udf/inode.c:150 evict+0x4d3/0xec0 fs/inode.c:576 iput_final fs/inode.c:1652 [inline] iput+0xc7b/0xf50 fs/inode.c:1678 iget_failed+0x2cb/0x390 fs/bad_inode.c:242 __udf_iget+0x111d/0x4650 fs/udf/inode.c:1914 udf_iget fs/udf/udfdecl.h:147 [inline] udf_fill_super+0x2fa3/0x3330 fs/udf/super.c:2284 mount_bdev+0x622/0x910 fs/super.c:1417 udf_mount+0xc9/0xe0 fs/udf/super.c:127 legacy_get_tree+0x163/0x2e0 fs/fs_context.c:592 vfs_get_tree+0xd8/0x5d0 fs/super.c:1547 do_new_mount fs/namespace.c:2875 [inline] path_mount+0x3d1a/0x5d40 fs/namespace.c:3192 do_mount+0x1c6/0x220 fs/namespace.c:3205 __do_compat_sys_mount fs/compat.c:122 [inline] __se_compat_sys_mount+0x7b5/0xaa0 fs/compat.c:89 __ia32_compat_sys_mount+0x62/0x80 fs/compat.c:89 do_syscall_32_irqs_on arch/x86/entry/common.c:80 [inline] __do_fast_syscall_32+0x129/0x180 arch/x86/entry/common.c:139 do_fast_syscall_32+0x6a/0xc0 arch/x86/entry/common.c:162 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:205 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7fec549 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 RSP: 002b:00000000f55e5f20 EFLAGS: 00000292 ORIG_RAX: 0000000000000015 RAX: ffffffffffffffda RBX: 00000000f55e5f7c RCX: 0000000020000100 RDX: 0000000020000000 RSI: 0000000002800885 RDI: 00000000f55e5fbc RBP: 00000000f55e5f7c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Uninit was stored to memory at: kmsan_save_stack_with_flags mm/kmsan/kmsan.c:143 [inline] kmsan_internal_chain_origin+0xad/0x130 mm/kmsan/kmsan.c:311 __msan_chain_origin+0x50/0x90 mm/kmsan/kmsan_instr.c:169 udf_alloc_inode+0x2ab/0x2d0 fs/udf/super.c:154 alloc_inode fs/inode.c:232 [inline] iget_locked+0x37a/0x13f0 fs/inode.c:1193 __udf_iget+0x152/0x4650 fs/udf/inode.c:1902 udf_iget fs/udf/udfdecl.h:147 [inline] udf_fill_super+0x2fa3/0x3330 fs/udf/super.c:2284 mount_bdev+0x622/0x910 fs/super.c:1417 udf_mount+0xc9/0xe0 fs/udf/super.c:127 legacy_get_tree+0x163/0x2e0 fs/fs_context.c:592 vfs_get_tree+0xd8/0x5d0 fs/super.c:1547 do_new_mount fs/namespace.c:2875 [inline] path_mount+0x3d1a/0x5d40 fs/namespace.c:3192 do_mount+0x1c6/0x220 fs/namespace.c:3205 __do_compat_sys_mount fs/compat.c:122 [inline] __se_compat_sys_mount+0x7b5/0xaa0 fs/compat.c:89 __ia32_compat_sys_mount+0x62/0x80 fs/compat.c:89 do_syscall_32_irqs_on arch/x86/entry/common.c:80 [inline] __do_fast_syscall_32+0x129/0x180 arch/x86/entry/common.c:139 do_fast_syscall_32+0x6a/0xc0 arch/x86/entry/common.c:162 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:205 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c Uninit was created at: kmsan_save_stack_with_flags+0x3c/0x90 mm/kmsan/kmsan.c:143 kmsan_internal_alloc_meta_for_pages mm/kmsan/kmsan_shadow.c:268 [inline] kmsan_alloc_page+0xc5/0x1a0 mm/kmsan/kmsan_shadow.c:292 __alloc_pages_nodemask+0xf34/0x1120 mm/page_alloc.c:4927 alloc_pages_current+0x685/0xb50 mm/mempolicy.c:2275 alloc_pages include/linux/gfp.h:545 [inline] alloc_slab_page mm/slub.c:1634 [inline] allocate_slab+0x2fe/0x1180 mm/slub.c:1777 new_slab mm/slub.c:1838 [inline] new_slab_objects mm/slub.c:2595 [inline] ___slab_alloc+0xd65/0x1940 mm/slub.c:2756 __slab_alloc mm/slub.c:2796 [inline] slab_alloc_node mm/slub.c:2871 [inline] slab_alloc mm/slub.c:2916 [inline] kmem_cache_alloc+0x9fe/0xc80 mm/slub.c:2921 udf_alloc_inode+0x60/0x2d0 fs/udf/super.c:144 alloc_inode fs/inode.c:232 [inline] iget_locked+0x37a/0x13f0 fs/inode.c:1193 __udf_iget+0x152/0x4650 fs/udf/inode.c:1902 udf_iget fs/udf/udfdecl.h:147 [inline] udf_fill_super+0x2fa3/0x3330 fs/udf/super.c:2284 mount_bdev+0x622/0x910 fs/super.c:1417 udf_mount+0xc9/0xe0 fs/udf/super.c:127 legacy_get_tree+0x163/0x2e0 fs/fs_context.c:592 vfs_get_tree+0xd8/0x5d0 fs/super.c:1547 do_new_mount fs/namespace.c:2875 [inline] path_mount+0x3d1a/0x5d40 fs/namespace.c:3192 do_mount+0x1c6/0x220 fs/namespace.c:3205 __do_compat_sys_mount fs/compat.c:122 [inline] __se_compat_sys_mount+0x7b5/0xaa0 fs/compat.c:89 __ia32_compat_sys_mount+0x62/0x80 fs/compat.c:89 do_syscall_32_irqs_on arch/x86/entry/common.c:80 [inline] __do_fast_syscall_32+0x129/0x180 arch/x86/entry/common.c:139 do_fast_syscall_32+0x6a/0xc0 arch/x86/entry/common.c:162 do_SYSENTER_32+0x73/0x90 arch/x86/entry/common.c:205 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c =====================================================