CVE-2026-93278

staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown

State: Published
Severity: Not scored
Published: Sep 24, 2026
Updated: Oct 19, 2026
Reserved: Sep 17, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

staging: octeon: add missing napi_disable in cvm_oct_rx_shutdown

cvm_oct_rx_shutdown calls free_irq and netif_napi_del without disabling the napi instance first. As the free_irq only waits for completion of hard interrupt handlers, the napi poll function could still be active. If cvm_oct_remove proceeds to free the plat structure (which holds the NAPI instances), the active poll function will access freed memory, resulting in a use-after-free crash.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	3368c784bcf77124aaf39372e627016c36bd4472 to before 158389d7af04bbf0664d91c2ce31fcc9eeace1ebAffected 3368c784bcf77124aaf39372e627016c36bd4472 to before c124049c3a7006fd6caf629139a5722610bbffb4Affected 3368c784bcf77124aaf39372e627016c36bd4472 to before 98f9036b2254c928cb44da0c77dba38f66f7d8f1Affected 3368c784bcf77124aaf39372e627016c36bd4472 to before b38fbd68cc36b4f478a1e3cfc169b8616ae1337dAffected 3368c784bcf77124aaf39372e627016c36bd4472 to before 89f9f433271fad9351de6a3c713b45b2cfb23e4aAffected 3368c784bcf77124aaf39372e627016c36bd4472 to before b2243ffaac14cc3639b5b32a371aac37f96ee554Affected 3368c784bcf77124aaf39372e627016c36bd4472 to before c0a9a8586a63fda49e61a6b83360feac2a60d898Affected
LinuxLinux	2.6.34Affected before 2.6.34Not affected 5.15.221 through 5.15.Not affected 6.1.188 through 6.1.Not affected 6.6.157 through 6.6.Not affected 6.12.110 through 6.12.Not affected 6.18.52 through 6.18.Not affected 7.2.6 through 7.2.Not affected 7.3 and laterNot affected

Product

Versions

LinuxLinux

3368c784bcf77124aaf39372e627016c36bd4472 to before 158389d7af04bbf0664d91c2ce31fcc9eeace1ebAffected
3368c784bcf77124aaf39372e627016c36bd4472 to before c124049c3a7006fd6caf629139a5722610bbffb4Affected
3368c784bcf77124aaf39372e627016c36bd4472 to before 98f9036b2254c928cb44da0c77dba38f66f7d8f1Affected
3368c784bcf77124aaf39372e627016c36bd4472 to before b38fbd68cc36b4f478a1e3cfc169b8616ae1337dAffected
3368c784bcf77124aaf39372e627016c36bd4472 to before 89f9f433271fad9351de6a3c713b45b2cfb23e4aAffected
3368c784bcf77124aaf39372e627016c36bd4472 to before b2243ffaac14cc3639b5b32a371aac37f96ee554Affected
3368c784bcf77124aaf39372e627016c36bd4472 to before c0a9a8586a63fda49e61a6b83360feac2a60d898Affected

LinuxLinux

2.6.34Affected
before 2.6.34Not affected
5.15.221 through 5.15.*Not affected
6.1.188 through 6.1.*Not affected
6.6.157 through 6.6.*Not affected
6.12.110 through 6.12.*Not affected
6.18.52 through 6.18.*Not affected
7.2.6 through 7.2.*Not affected
7.3 and laterNot affected

References

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