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CVE-2026-93279

Unknown

Last modified

CVE-2026-93279 is a vulnerability of currently unknown severity. In the Linux kernel, the following vulnerability has been resolved: staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown The TX cleanup tasklet can be scheduled by the watchdog IRQ handler to execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in the queue which might run after the cvm_oct_remove() frees net_device structures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it iterates cvm_oct_device[] which is an array of netdevice pointers. Add tasklet_kill() after free_irq() to ensure the tasklet is no longer scheduled or running before teardown proceeds..

Description

In the Linux kernel, the following vulnerability has been resolved: staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown The TX cleanup tasklet can be scheduled by the watchdog IRQ handler to execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in the queue which might run after the cvm_oct_remove() frees net_device structures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it iterates cvm_oct_device[] which is an array of netdevice pointers. Add tasklet_kill() after free_irq() to ensure the tasklet is no longer scheduled or running before teardown proceeds.

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 4898c560103fb8075c10a8e9d70e0ca26873075e, < 32efcb6d5f4e3f030e7b0a3ba5c6c0684dd07486; >= 4898c560103fb8075c10a8e9d70e0ca26873075e, < d15226338dfaa84ffff142d32723cdf74d0c47c4; >= 4898c560103fb8075c10a8e9d70e0ca26873075e, < a77efd85e0d48c877f66d2bc3ab89cc1b8dacd19; >= 4898c560103fb8075c10a8e9d70e0ca26873075e, < b6365e4186322858a82c8713b1d0bd209c8e765a; >= 4898c560103fb8075c10a8e9d70e0ca26873075e, < 03d12490afd1198310ad0aba42462329832eb739; >= 4898c560103fb8075c10a8e9d70e0ca26873075e, < 2c0c9956596e48654bb4855e2a0742748a0826a7; >= 4898c560103fb8075c10a8e9d70e0ca26873075e, < 41a79bd9e5a74f8f483b3b206d10567912874fb4; >= 4898c560103fb8075c10a8e9d70e0ca26873075e, < b9af44b0d20b2247c4eb0ea5cfca907d643eea50
LinuxLinux2.6.34

References

Timeline

Published
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-93279?
In the Linux kernel, the following vulnerability has been resolved: staging: octeon: add missing tasklet_kill in cvm_oct_tx_shutdown The TX cleanup tasklet can be scheduled by the watchdog IRQ handler to execute cvm_oct_tx_do_cleanup. There can be a pending tasklet in the queue which might run after the cvm_oct_remove() frees net_device structures, causing a use-after-free in cvm_oct_tx_do_cleanup() as it iterates cvm_oct_device[] which is an array of netdevice pointers. Add tasklet_kill() after free_irq() to ensure the tasklet is no longer scheduled or running before teardown proceeds.
How severe is CVE-2026-93279?
Severity scoring for CVE-2026-93279 is pending analysis.
How do I fix CVE-2026-93279?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST