What’s Vulnerable › Vulnerabilities

CVE-2026-90165: smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger()

• Severity: unknown
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-19

Description

In the Linux kernel, the following vulnerability has been resolved: smb/server: fix invalid pointer dereference in ksmbd_stop_durable_scavenger() See the procedure below: ksmbd_launch_ksmbd_durable_scavenger durable_scavenger_running = true server_conf.dh_task = kthread_run() // fail, dh_task is an ERR_PTR() server_ctrl_handle_reset ksmbd_stop_durable_scavenger kthread_stop(server_conf.dh_task) // invalid pointer

Affected products

• Linux kernel: from 6.6.142 before 6.6.157; 6.11 — fixed in 6.6.157, 7.3

How to fix

Upgrade to a fixed version: Linux kernel 6.6.157, 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/3f8651f6bb52159c9e23993c77a2b51b9505ad64
• https://git.kernel.org/stable/c/a2eb72b4d53bb9d8d6c00f3f794eaccb4b1ce5ed
• https://git.kernel.org/stable/c/af9cb997d13a17029a0d3863e33f4c837e27a8ae
• https://git.kernel.org/stable/c/b2d78c199dfd983638662ace0612d4fade3dbea1
• https://git.kernel.org/stable/c/bef46b604732d83f8da29f782868de4d25bf972c

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