NULL Pointer Dereference Affecting kernel-cross-headers package, versions *
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Test your applications- Snyk ID SNYK-RHEL8-KERNELCROSSHEADERS-6270388
- published 24 Feb 2024
- disclosed 23 Feb 2024
Introduced: 23 Feb 2024
CVE-2023-52454 Open this link in a new tabHow to fix?
There is no fixed version for RHEL:8 kernel-cross-headers.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-cross-headers package and not the kernel-cross-headers 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:
nvmet-tcp: Fix a kernel panic when host sends an invalid H2C PDU length
If the host sends an H2CData command with an invalid DATAL, the kernel may crash in nvmet_tcp_build_pdu_iovec().
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 lr : nvmet_tcp_io_work+0x6ac/0x718 [nvmet_tcp] Call trace: process_one_work+0x174/0x3c8 worker_thread+0x2d0/0x3e8 kthread+0x104/0x110
Fix the bug by raising a fatal error if DATAL isn't coherent with the packet size. Also, the PDU length should never exceed the MAXH2CDATA parameter which has been communicated to the host in nvmet_tcp_handle_icreq().
References
- https://access.redhat.com/security/cve/CVE-2023-52454
- https://git.kernel.org/stable/c/24e05760186dc070d3db190ca61efdbce23afc88
- https://git.kernel.org/stable/c/2871aa407007f6f531fae181ad252486e022df42
- https://git.kernel.org/stable/c/4cb3cf7177ae3666be7fb27d4ad4d72a295fb02d
- https://git.kernel.org/stable/c/70154e8d015c9b4fb56c1a2ef1fc8b83d45c7f68
- https://git.kernel.org/stable/c/ee5e7632e981673f42a50ade25e71e612e543d9d
- https://git.kernel.org/stable/c/efa56305908ba20de2104f1b8508c6a7401833be
- https://git.kernel.org/stable/c/f775f2621c2ac5cc3a0b3a64665dad4fb146e510
- https://lists.debian.org/debian-lts-announce/2024/06/msg00016.html