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CVE-2023-53469

Опубликовано: 01 окт. 2025
Источник: nvd

Описание

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

Связанные уязвимости

ubuntu
11 месяцев назад

Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.

CVSS3: 4.7
redhat
11 месяцев назад

No description is available for this CVE.

msrc
11 месяцев назад

af_unix: Fix null-ptr-deref in unix_stream_sendpage().

github
11 месяцев назад

In the Linux kernel, the following vulnerability has been resolved: af_unix: Fix null-ptr-deref in unix_stream_sendpage(). Bing-Jhong Billy Jheng reported null-ptr-deref in unix_stream_sendpage() with detailed analysis and a nice repro. unix_stream_sendpage() tries to add data to the last skb in the peer's recv queue without locking the queue. If the peer's FD is passed to another socket and the socket's FD is passed to the peer, there is a loop between them. If we close both sockets without receiving FD, the sockets will be cleaned up by garbage collection. The garbage collection iterates such sockets and unlinks skb with FD from the socket's receive queue under the queue's lock. So, there is a race where unix_stream_sendpage() could access an skb locklessly that is being released by garbage collection, resulting in use-after-free. To avoid the issue, unix_stream_sendpage() must lock the peer's recv queue. Note the issue does not exist in 6.5+ thanks to the recent sendpage...

CVSS3: 4.7
fstec
почти 3 года назад

Уязвимость функции unix_stream_sendpage() модуля net/unix/af_unix.c реализации сетевых функций ядра операционной системы Linux, позволяющая нарушителю вызвать отказ в обслуживании