Medium severity5.5NVD Advisory· Published May 28, 2026· Updated Jun 17, 2026
CVE-2026-46153
CVE-2026-46153
Description
In the Linux kernel, the following vulnerability has been resolved:
8021q: delete cleared egress QoS mappings
vlan_dev_set_egress_priority() currently keeps cleared egress priority mappings in the hash as tombstones. Repeated set/clear cycles with distinct skb priorities therefore accumulate mapping nodes until device teardown and leak memory.
Delete mappings when vlan_prio is cleared instead of keeping tombstones. Now that the egress mapping lists are RCU protected, the node can be unlinked safely and freed after a grace period.
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Affected products
12- osv-coords4 versionspkg:apk/chainguard/linux-qemu-6.18-bootc-boot-installedpkg:rpm/opensuse/kernel-source&distro=openSUSE%20Tumbleweedpkg:linux/kernelpkg:apk/chainguard/linux-gcp-6.18-bootc-boot-installed
< 6.18.38-r2+ 3 more
- (no CPE)range: < 6.18.38-r2
- (no CPE)range: < 7.0.11-1.1
- (no CPE)range: >= 2.6.12, < 7.0.7
- (no CPE)range: < 6.18.38-r2
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*+ 6 more
- cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*range: >=2.6.12.1,<7.0.7
- cpe:2.3:o:linux:linux_kernel:2.6.12:-:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc2:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc3:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc4:*:*:*:*:*:*
- cpe:2.3:o:linux:linux_kernel:2.6.12:rc5:*:*:*:*:*:*
- (no CPE)
Patches
Vulnerability mechanics
References
2News mentions
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