CVE-2024-42265 Affecting kernel-syms package, versions <6.4.0-150600.23.25.1
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Test your applications- Snyk ID SNYK-SLES156-KERNELSYMS-8173971
- published 10 Oct 2024
- disclosed 9 Oct 2024
How to fix?
Upgrade SLES:15.6 kernel-syms to version 6.4.0-150600.23.25.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-syms package and not the kernel-syms package as distributed by SLES.
See How to fix? for SLES:15.6 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
protect the fetch of ->fd[fd] in do_dup2() from mispredictions
both callers have verified that fd is not greater than ->max_fds; however, misprediction might end up with tofree = fdt->fd[fd]; being speculatively executed. That's wrong for the same reasons why it's wrong in close_fd()/file_close_fd_locked(); the same solution applies - array_index_nospec(fd, fdt->max_fds) could differ from fd only in case of speculative execution on mispredicted path.
References
- https://www.suse.com/security/cve/CVE-2024-42265.html
- https://bugzilla.suse.com/1229334
- https://git.kernel.org/stable/c/1171ceccabfd596ca370c5d2cbb47d110c3f2fe1
- https://git.kernel.org/stable/c/5db999fff545b924b24c9afd368ef5c17279b176
- https://git.kernel.org/stable/c/8aa37bde1a7b645816cda8b80df4753ecf172bf1
- https://git.kernel.org/stable/c/da72e783afd27d9f487836b2e6738146c0edd149
- https://git.kernel.org/stable/c/08775b3d6ed117cf4518754ec7300ee42b6a5368
- https://git.kernel.org/stable/c/3f480493550b6a23d3a65d095d6569d4a7f56a0f
- https://git.kernel.org/stable/c/41a6c31df77bd8e050136b0a200b537da9e1084a
- https://git.kernel.org/stable/c/ed42e8ff509d2a61c6642d1825032072dab79f26