CVE-2026-46153
published 2026-05-28CVE-2026-46153: In the Linux kernel, the following vulnerability has been resolved: 8021q: delete cleared egress QoS mappings vlan_dev_set_egress_priority() currently keeps…
medium5.5
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
4 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linux | linux | — | — |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a52e122c9e4d56ad9a03b32c915a199276d989c3 | a52e122c9e4d56ad9a03b32c915a199276d989c3 |
| linux | linux | >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7dddc74af369478ba7f9bc136d0fc1dc4570cb66 | 7dddc74af369478ba7f9bc136d0fc1dc4570cb66 |
| linux | linux_kernel | — | — |