Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ipv6/sit: use DEV_STATS_INC() to avoid data-races syzbot/KCSAN reported that multiple cpus are updating dev->stats.tx_error concurrently. This is because sit tunnels are NETIF_F_LLTX, meaning their ndo_start_xmit() is not protected by a spinlock. While original KCSAN report was about tx path, rx path has the same issue.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 8df40d1033d64597dcf1efd4f7547e817f7a953b before 222cc04356984f3f98acfa756a69d4bed7c501ac; affected 8df40d1033d64597dcf1efd4f7547e817f7a953b before 4eed93bb3e57b8cc78d17166a14e40a73276015a; affected 8df40d1033d64597dcf1efd4f7547e817f7a953b before 207501a986831174df09a36a8cb62a28f92f0dc8; affected 8df40d1033d64597dcf1efd4f7547e817f7a953b before cb34b7cf17ecf33499c9298943f85af247abc1e9 |
| Linux / Linux | affected 2.6.37; unaffected 0 before 2.6.37; unaffected 5.15.86 through 5.15.*; unaffected 6.0.16 through 6.0.*; unaffected 6.1.2 through 6.1.*; unaffected 6.2 through * |
CWE
No CWE identifiers supplied.