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CVE-2024-42265 Detail

Description

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.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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Hyperlink Resource
https://git.kernel.org/stable/c/08775b3d6ed117cf4518754ec7300ee42b6a5368
https://git.kernel.org/stable/c/1171ceccabfd596ca370c5d2cbb47d110c3f2fe1
https://git.kernel.org/stable/c/3f480493550b6a23d3a65d095d6569d4a7f56a0f
https://git.kernel.org/stable/c/41a6c31df77bd8e050136b0a200b537da9e1084a
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/ed42e8ff509d2a61c6642d1825032072dab79f26

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-42265
NVD Published Date:
08/17/2024
NVD Last Modified:
08/19/2024
Source:
kernel.org