CVE-2021-47291

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.

The following products are affected by CVE-2021-47291 vulnerability.

Here, you will find a curated list of external links that provide in-depth information to CVE-2021-47291.

URL	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
https://lore.kernel.org/linux-cve-announce/2024052123-CVE-2021-47291-8eb9@gregkh/T
https://nvd.nist.gov/vuln/detail/CVE-2021-47291
https://www.cve.org/CVERecord?id=CVE-2021-47291