NULL Pointer Dereference Affecting perf package, versions <0:4.18.0-553.5.1.el8_10
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Test your applications- Snyk ID SNYK-RHEL8-PERF-6389882
- published 5 Mar 2024
- disclosed 2 Mar 2024
Introduced: 2 Mar 2024
CVE-2023-52513 Open this link in a new tabHow to fix?
Upgrade RHEL:8 perf to version 0:4.18.0-553.5.1.el8_10 or higher.
This issue was patched in RHSA-2024:3618.
NVD Description
Note: Versions mentioned in the description apply only to the upstream perf package and not the perf package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
RDMA/siw: Fix connection failure handling
In case immediate MPA request processing fails, the newly created endpoint unlinks the listening endpoint and is ready to be dropped. This special case was not handled correctly by the code handling the later TCP socket close, causing a NULL dereference crash in siw_cm_work_handler() when dereferencing a NULL listener. We now also cancel the useless MPA timeout, if immediate MPA request processing fails.
This patch furthermore simplifies MPA processing in general: Scheduling a useless TCP socket read in sk_data_ready() upcall is now surpressed, if the socket is already moved out of TCP_ESTABLISHED state.
References
- https://access.redhat.com/security/cve/CVE-2023-52513
- https://git.kernel.org/stable/c/0d520cdb0cd095eac5d00078dfd318408c9b5eed
- https://git.kernel.org/stable/c/53a3f777049771496f791504e7dc8ef017cba590
- https://git.kernel.org/stable/c/5cf38e638e5d01b68f9133968a85e8b3fd1ecf2f
- https://git.kernel.org/stable/c/6e26812e289b374c17677d238164a5a8f5770594
- https://git.kernel.org/stable/c/81b7bf367eea795d259d0261710c6a89f548844d
- https://git.kernel.org/stable/c/eeafc50a77f6a783c2c44e7ec3674a7b693e06f8