==================================================================
BUG: KFENCE: out-of-bounds in squashfs_inode_lookup fs/squashfs/export.c:43 [inline]
BUG: KFENCE: out-of-bounds in squashfs_export_iget+0x47/0x120 fs/squashfs/export.c:69

Out-of-bounds access at 0xffff88823bdafff8 (8B left of kfence-#215):
 squashfs_inode_lookup fs/squashfs/export.c:43 [inline]
 squashfs_export_iget+0x47/0x120 fs/squashfs/export.c:69
 exportfs_decode_fh+0x53/0x2f0 fs/exportfs/expfs.c:434
 do_handle_to_path fs/fhandle.c:152 [inline]
 handle_to_path fs/fhandle.c:207 [inline]
 do_handle_open+0x12e/0x350 fs/fhandle.c:223
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

kfence-#215 [0xffff88823bdb0000-0xffff88823bdb0007, size=8, cache=kmalloc-8] allocated by task 22961:
 kmalloc include/linux/slab.h:557 [inline]
 squashfs_read_table+0x36/0x120 fs/squashfs/cache.c:413
 squashfs_read_inode_lookup_table+0x6c/0x90 fs/squashfs/export.c:131
 squashfs_fill_super+0x3bf/0x8f0 fs/squashfs/super.c:255
 get_tree_bdev+0x1b0/0x2a0 fs/super.c:1344
 vfs_get_tree+0x1d/0xd0 fs/super.c:1549
 do_new_mount fs/namespace.c:2875 [inline]
 path_mount+0x75e/0xac0 fs/namespace.c:3205
 do_mount+0x70/0x90 fs/namespace.c:3218
 __do_sys_mount fs/namespace.c:3426 [inline]
 __se_sys_mount fs/namespace.c:3403 [inline]
 __x64_sys_mount+0xbf/0xe0 fs/namespace.c:3403
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

CPU: 0 PID: 22961 Comm: syz-executor.0 Not tainted 5.10.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:squashfs_inode_lookup fs/squashfs/export.c:44 [inline]
RIP: 0010:squashfs_export_iget+0x47/0x120 fs/squashfs/export.c:69
Code: 44 00 00 48 8b 93 78 06 00 00 8d 45 ff 48 98 48 c1 e0 03 89 c1 48 c1 f8 0d 48 8b 92 e8 00 00 00 81 e1 ff 1f 00 00 89 4c 24 04 <48> 8b 04 c2 48 89 44 24 08 0f 1f 44 00 00 48 8d 54 24 08 41 b8 08
RSP: 0018:ffffc9000123bd60 EFLAGS: 00010202
RAX: ffffffffffffffff RBX: ffff88811ebab000 RCX: 0000000000001ff8
RDX: ffff88823bdb0000 RSI: 0000000000000000 RDI: ffff88811ebab000
RBP: 0000000000000000 R08: ffffffff81563930 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff88810c9c7be8
R13: ffff88811eb09160 R14: 0000000000000002 R15: ffffffff81563930
FS:  00007f5e4c7ab700(0000) GS:ffff88813bc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: ffff88823bdafff8 CR3: 000000011eae0000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 exportfs_decode_fh+0x53/0x2f0 fs/exportfs/expfs.c:434
 do_handle_to_path fs/fhandle.c:152 [inline]
 handle_to_path fs/fhandle.c:207 [inline]
 do_handle_open+0x12e/0x350 fs/fhandle.c:223
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x45e0f9
Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f5e4c7aac68 EFLAGS: 00000246 ORIG_RAX: 0000000000000130
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045e0f9
RDX: 0000000000000000 RSI: 0000000020000280 RDI: 0000000000000005
RBP: 000000000119bfc0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c
R13: 00007ffd4cbea74f R14: 00007f5e4c7ab9c0 R15: 000000000119bf8c
==================================================================