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CVE-2021-47291 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: ipv6: fix another slab-out-of-bounds in fib6_nh_flush_exceptions While running the self-tests on a KASAN enabled kernel, I observed a slab-out-of-bounds splat very similar to the one reported in commit 821bbf79fe46 ("ipv6: Fix KASAN: slab-out-of-bounds Read in fib6_nh_flush_exceptions"). We additionally need to take care of fib6_metrics initialization failure when the caller provides an nh. The fix is similar, explicitly free the route instead of calling fib6_info_release on a half-initialized object.


Metrics

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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/115784bcccf135c3a3548098153413d76f16aae0
https://git.kernel.org/stable/c/830251361425c5be044db4d826aaf304ea3d14c6
https://git.kernel.org/stable/c/8fb4792f091e608a0a1d353dfdf07ef55a719db5
https://git.kernel.org/stable/c/ce8fafb68051fba52546f8bbe8621f7641683680

Weakness Enumeration

CWE-ID CWE Name Source

Change History

2 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-47291
NVD Published Date:
05/21/2024
NVD Last Modified:
05/21/2024
Source:
kernel.org