In the Linux kernel, the following vulnerability has been resolved:
net/mlx5e: Fix use-after-free in mlx5e_tx_reporter_timeout_recover
mlx5e_tx_reporter_timeout_recover() accesses sq->netdev after mlx5e_safe_reopen_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 netdev_err() call already used priv->netdev for this reason; make the trylock/unlock and health_channel_eq_recover calls consistent.
This fixes the following KASAN splat:
BUG: KASAN: use-after-free in mlx5e_tx_reporter_timeout_recover+0x1dd/0x360 [mlx5_core] Read of size 8 at addr ffff889860ed0b28 by task kworker/u113:2/5277
Call Trace: mlx5e_tx_reporter_timeout_recover+0x1dd/0x360 [mlx5_core] devlink_health_reporter_recover+0xa2/0x150 devlink_health_report+0x254/0x7c0 mlx5e_reporter_tx_timeout+0x297/0x380 [mlx5_core] mlx5e_tx_timeout_work+0x109/0x170 [mlx5_core] process_one_work+0x677/0xf20 worker_thread+0x51f/0xd90 kthread+0x3a5/0x810 ret_from_fork+0x208/0x400 ret_from_fork_asm+0x1a/0x30
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade kernel6.18Upgrade kernel6.18-modules-extraUpgrade kernel6.18-toolsUpgrade kernel6.18-debuginfoUpgrade kernel6.18-tools-develUpgrade microvm-kernel6.18Upgrade kernel6.18-headersUpgrade kernel6.18-tools-debuginfoUpgrade kernel6.18-modules-extra-commonUpgrade kernel-livepatch-6.18.35-68.127Upgrade python3-perf6.18Upgrade kernel6.18-develUpgrade python3-perf6.18-debuginfoUpgrade kernel6.18-debuginfo-common-aarch64Upgrade bpftool6.18Upgrade bpftool6.18-debuginfoUpgrade kernel6.18-debuginfo-common-x86_64Upgrade perf6.18Upgrade perf6.18-debuginfo | Aug 10, 2026 | Jul 19, 2026 |
| Redhat_linux | — | No solution exists | Jul 22, 2026 | Jul 19, 2026 |
| Ubuntu | — | Upgrade linux-image-7.0.0-1011-oracle-64kUpgrade linux-image-awsUpgrade linux-image-oracle-64kUpgrade linux-image-7.0.0-1009-azure-fdeUpgrade linux-image-aws-64kUpgrade linux-image-raspi-realtime-7.0Upgrade linux-image-7.0.0-1015-raspiUpgrade linux-image-gcp-7.0Upgrade linux-image-aws-64k-7.0Upgrade linux-image-nvidia-64kUpgrade linux-image-aws-7.0Upgrade linux-image-raspi-7.0Upgrade linux-image-oracle-64k-7.0Upgrade linux-image-oracleUpgrade linux-image-gcp-64k-7.0Upgrade linux-image-7.0.0-1010-azureUpgrade linux-image-7.0.0-2016-nvidia-bos-64kUpgrade linux-image-7.0.0-1014-azureUpgrade linux-image-7.0.0-1015-raspi-realtimeUpgrade linux-image-7.0.0-1016-nvidiaUpgrade linux-image-nvidia-64k-hwe-26.04Upgrade linux-image-nvidia-7.0Upgrade linux-image-azure-fdeUpgrade linux-image-gcpUpgrade linux-image-7.0.0-1011-gcpUpgrade linux-image-azure-7.0Upgrade linux-image-raspiUpgrade linux-image-7.0.0-1008-oracleUpgrade linux-image-7.0.0-1009-awsUpgrade linux-image-nvidia-bosUpgrade linux-image-7.0.0-1011-oracleUpgrade linux-image-7.0.0-1009-aws-64kUpgrade linux-image-azure-fde-7.0Upgrade linux-image-7.0.0-1010-ibmUpgrade linux-image-nvidia-bos-64k-7.0Upgrade linux-image-raspi-realtimeUpgrade linux-image-nvidia-hwe-26.04Upgrade linux-image-nvidia-bos-64kUpgrade linux-image-7.0.0-1011-gcp-64kUpgrade linux-image-7.0.0-1008-oracle-64kUpgrade linux-image-nvidia-bos-7.0Upgrade linux-image-azureUpgrade linux-image-7.0.0-1016-nvidia-64kUpgrade linux-image-nvidia-64k-7.0Upgrade linux-image-nvidiaUpgrade linux-image-ibm-7.0Upgrade linux-image-7.0.0-2016-nvidia-bosUpgrade linux-image-oracle-7.0Upgrade linux-image-ibmUpgrade linux-image-gcp-64k | Jul 21, 2026 | Jul 20, 2026 |
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