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CVE-2026-43463

rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer()

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 6.8, 6.12.114, 6.18.19, 6.19.9
None on Exploit-DB, Metasploit or GitHub

Summary

In the Linux kernel, the following vulnerability has been resolved: rxrpc, afs: Fix missing error pointer check after rxrpc_kernel_lookup_peer() rxrpc_kernel_lookup_peer() can also return error pointers in addition to NULL, so just checking for NULL is not sufficient. Fix this by: (1) Changing rxrpc_kernel_lookup_peer() to return -ENOMEM rather than NULL on allocation failure. (2) Making the callers in afs use IS_ERR() and PTR_ERR() to pass on the error code returned.

Timeline

  1. CVE published
  2. Record last updated

Affected versions

  • Linux Linux

    From 72904d7b9bfbf2dd146254edea93958bc35bbbfe · fixed in d854c93b12f2076c564f595b41b93b02fd42a0f9; From 72904d7b9bfbf2dd146254edea93958bc35bbbfe · fixed in d55fa7cd4b19ba91b34b307d769c149e56ad0a75; From 72904d7b9bfbf2dd146254edea93958bc35bbbfe · fixed in 54331c5dcc6d97683d7ca2788e7ef9c9505e1477; From 72904d7b9bfbf2dd146254edea93958bc35bbbfe · fixed in 4245a79003adf30e67f8e9060915bd05cb31d142; From 6.7.3 · fixed in 6.8

  • Linux Linux

    6.8

  • KernelLinux

    From 6.8.0 · fixed in 6.12.114; From 6.13.0 · fixed in 6.18.19; From 6.19.0 · fixed in 6.19.9

References 4

git.kernel.org