Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且廠商未提供可用的修補程式。

  - ext4「ext4_rename」Syzbot 中「old.inode」的 init 配額發現下列問題ext4_parse_param
    s_want_extra_isize=128 ext4_inode_info_inits_want_extra_isize=32 ext4_rename舊。inode=ffff88823869a2c8 舊版。dir=ffff888238699828 新增。inode=ffff88823869d7e8 新增。dir=ffff888238699828 __ext4_mark_inode_dirty
    inode=ffff888238699828 ea_isize=32want_ea_size=128 __ext4_mark_inode_dirty: inode=ffff88823869a2c8 ea_isize=32want_ea_size=128 ext4_xattr_block_set: inode=ffff88823869a2c8 ------------[剪到這裡]------------警告CPU13 PID2234在 fs/ext4/xattr.c:2070 ext4_xattr_block_set.cold+0x22/0x980 模組連結 RIP 0010:ext4_xattr_block_set.cold+0x22/0x980 RSP0018:ffff888227d3f3b0 EFLAGS:
    00010202 RAX 0000000000000001 RBX ffff88823007a000 RCX 0000000000000000 RDX 0000000000000a03 RSI
    0000000000000040 RDI: ffff888230078178 RBP: 0000000000000000 R08: 000000000000002c R09: ffffed1075c7df8e R10: ffff8883ae3efc6b R11: ffffed1075c7df8d R12: 0000000000000000 R13: ffff88823869a2c8 R14:
     R15ffff8881012e0460  : dffffc0000000000 FS: 00007f350ac1f740(0000) GS:ffff8883ae200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f350a6ed6a0 CR3:
    0000000237456000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> ? ext4_xattr_set_entry+0x3b7/0x2320 ext4_xattr_block_set+0x0/0x2020 ? ext4_xattr_set_entry+0x0/0x2320 ? ext4_xattr_check_entries+0x77/0x310 ? ext4_xattr_ibody_set+0x23b/0x340 ext4_xattr_move_to_block+0x594/0x720 ext4_expand_extra_isize_ea+0x59a/0x10f0
    __ext4_expand_extra_isize+0x278/0x3f0 __ext4_mark_inode_dirty.cold+0x347/0x410 ext4_rename+0xed3/0x174f vfs_rename+0x13a7/0x2510 do_renameat2+0x55d/0x920 __x64_sys_rename+0x7d/0xb0 do_syscall_64+0x3b/0xa0 entry_SYSCALL_64_after_hwframe+0x72/0xdc As 'ext4_rename' will modify 'old .inode」ctime 並標記 inode 已變更其可能觸發擴充「extra_isize」並配置區塊。如果 inode 未初始化配額將會導致警告。若要解決上述問題請先在「ext4_rename」中初始化「old.inode」。 (CVE-2022-50346)

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

偵測

Linux Distros 未修補的弱點：CVE-2022-50346

medium Nessus Plugin ID 265641

版本 1.12