CVE-2026-46153
N/A
N/A
Summary
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.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a52e122c9e4d56ad9a03b32c915a199276d989c3 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7dddc74af369478ba7f9bc136d0fc1dc4570cb66 | affected |
| Linux | Linux | 2.6.12 | affected |
| Linux | Linux | 0 < 2.6.12 | unaffected |
| Linux | Linux | 7.0.7 <= 7.0.* | unaffected |
| Linux | Linux | 7.1 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/a52e122c9e4d56ad9a03b32c915a199276d989c3
- https://git.kernel.org/stable/c/7dddc74af369478ba7f9bc136d0fc1dc4570cb66
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