Resource Injection Affecting kernel-debug-devel package, versions <0:4.18.0-553.22.1.el8_10
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Test your applications- Snyk ID SNYK-RHEL8-KERNELDEBUGDEVEL-7758679
- published 21 Aug 2024
- disclosed 17 Aug 2024
Introduced: 17 Aug 2024
CVE-2024-42265 Open this link in a new tabHow to fix?
Upgrade RHEL:8 kernel-debug-devel to version 0:4.18.0-553.22.1.el8_10 or higher.
This issue was patched in RHSA-2024:7000.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-debug-devel package and not the kernel-debug-devel 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:
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://access.redhat.com/security/cve/CVE-2024-42265
- 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