Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - af_unix修复围绕 user->unix_inflight 的数据争用。 user->unix_inflight 在 spin_lock(unix_gc_lock) 下被更改但 too_many_unix_fds() 以无锁方式读取。让我们将写入/读取访问注释为 user->unix_inflight。BUGKCSAN通过 cpu 1 上的任务 44798 写入 8 字节的 0xffffffff8546f2d0 中 unix_attach_fds / unix_inflight 中的数据争用: unix_inflight+0x157/0x180 net/unix/scm.c:66 unix_attach_fds+0x147/0x1e0 net/unix/scm.c :123 unix_scm_to_skb net/unix/af_unix.c:1827 [内联] unix_dgram_sendmsg+0x46a/0x14f0 net/unix/af_unix.c:1950 unix_seqpacket_sendmsg net/unix/af_unix.c:2308 [内联] unix_seqpacket_sendmsg+0xba/0x130 net/unix13 /af_unix.c:2292 sock_sendmsg_nosec net/socket.c:725 [内联] sock_sendmsg+0x148/0x160 net/socket.c:748____sys_sendmsg+0x4e4/0x610 net/socket.c:2494
    ___sys_sendmsg+0xc6/0x140 net/socket.c:2548 __sys_sendmsg+0x94/0x140 net/socket.c:2577 __do_sys_sendmsg net/socket.c:2586 [内联] __se_sys_sendmsg net/socket.c:2584 [内联] __x64_sys0x45/ 0x50 net/socket.c:2584 do_syscall_x64 arch/x86/entry/common.c:50 [内联] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 读取至 8 字节的 0xffffffff8546f2d0按 cpu 0 上的任务 44814排序too_many_unix_fds net/unix/scm.c:101 [内联] unix_attach_fds+0x54/0x1e0 net/unix/scm.c:110 unix_scm_to_skb net/unix/af_unix.c:1827 [内联] unix_dgram_sendmsg+0x46a /0x14f0 net/unix/af_unix.c:1950 unix_seqpacket_sendmsg net/unix/af_unix.c:2308 [内联] unix_seqpacket_sendmsg+0xba/0x130 net/unix/af_unix.c:2292 sock_sendmsg_nosec net/socket.c:725 [内联] sock_sendmsg +0x148/0x160 net/socket.c:748____sys_sendmsg+0x4e4/0x610 net/socket.c:2494
    ___sys_sendmsg+0xc6/0x140 net/socket.c:2548 __sys_sendmsg+0x94/0x140 net/socket.c:2577 __do_sys_sendmsg net/socket.c:2586 [内联] __se_sys_sendmsg net/socket.c:2584 [内联] __x64_sys0x45/ 0x50 net/socket.c:2584 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x3b/0x90 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x6e/0xd8 值已更改0x000000000000000c -> 0x000000000000000d 已由 CPU: 0 PID: 44814 Comm: systemd-coredum Not tainted 6.4.0-11989-g6843306689af 上的内核并发审查器报告 #6 硬件名称QEMU Standard PC (i440FX + PIIX,1996), BIOS rel-1.16.0 -0-gd239552ce722-prebuilt.qemu.org 04/01/2014 (CVE-2023-53204)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

检测

Linux Distros 未修补的漏洞：CVE-2023-53204

medium Nessus 插件 ID 264982

版本 1.7