CVE-2021-47291
See a problem?- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-47291
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-47291.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-47291
- Related
- Published
- 2024-05-21T15:15:17Z
- Modified
- 2024-09-11T04:41:06.745107Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
ipv6: fix another slab-out-of-bounds in fib6nhflush_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 fib6nhflush_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 fib6inforelease on a half-initialized object.
- References
-
- 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://security-tracker.debian.org/tracker/CVE-2021-47291
Affected packages
Debian:11 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:12 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source
Debian:13 / linux
Package
- Name
- linux
- Purl
- pkg:deb/debian/linux?arch=source