In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Fix use-after-free in mlx5etxreportertimeoutrecover
mlx5etxreportertimeoutrecover() accesses sq->netdev after mlx5esafereopen_channels() has torn down and freed the channel (and its embedded SQs). Replace the three sq->netdev references with priv->netdev which is safe because priv outlives channel teardown.
The netdeverr() call already used priv->netdev for this reason; make the trylock/unlock and healthchanneleqrecover calls consistent.
This fixes the following KASAN splat:
BUG: KASAN: use-after-free in mlx5etxreportertimeoutrecover+0x1dd/0x360 [mlx5_core] Read of size 8 at addr ffff889860ed0b28 by task kworker/u113:2/5277
Call Trace: mlx5etxreportertimeoutrecover+0x1dd/0x360 [mlx5core] devlinkhealthreporterrecover+0xa2/0x150 devlinkhealthreport+0x254/0x7c0 mlx5ereportertxtimeout+0x297/0x380 [mlx5core] mlx5etxtimeoutwork+0x109/0x170 [mlx5core] processonework+0x677/0xf20 workerthread+0x51f/0xd90 kthread+0x3a5/0x810 retfromfork+0x208/0x400 retfromforkasm+0x1a/0x30
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/64xxx/CVE-2026-64122.json",
"cna_assigner": "Linux"
}