CVE-2026-98544 (GCVE-0-2026-98544)

Vulnerability from cvelistv5 – Published: 2026-10-18 15:18 – Updated: 2026-10-21 12:55
VLAI
Title
bna: prevent IOC timer rearm during teardown
Summary
In the Linux kernel, the following vulnerability has been resolved: bna: prevent IOC timer rearm during teardown bna: prevent IOC timer rearm during teardown bnad_pci_remove() and the probe disable_ioceth path call timer_delete_sync() for ioc_timer, sem_timer and hb_timer, but not for iocpf_timer. bnad_iocpf_timeout() then takes bnad->bna_lock after free_netdev() has freed the struct bnad. Deleting iocpf_timer last does not fix this. sem_timer and iocpf_timer rearm each other: bnad_iocpf_sem_timeout() can arm iocpf_timer, and bnad_iocpf_timeout() arms sem_timer from bfa_ioc_hw_sem_get() when the semaphore is busy. timer_delete_sync() only waits out its own callback. bnad_ioceth_disable() can time out and leave that callback live. Shut all four IOC timers down with timer_shutdown_sync() on both paths, so a later mod_timer() is ignored. This issue was identified during our ongoing static-analysis research while reviewing kernel code.
Severity
No CVSS data available.
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 7033 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 1d32f7696286eef9e5644eb57e79a36756274357 , < f04cbdfac9b8284146995ab7ba0d054ad1d20ec6 (git)
Affected: 1d32f7696286eef9e5644eb57e79a36756274357 , < 28e32ace754b57534ef0ca0fb99bcbea5b13ba2a (git)
Affected: 1d32f7696286eef9e5644eb57e79a36756274357 , < 4d97a141e85a034566c33c7ed854c8a3e8a268f1 (git)
Affected: 1d32f7696286eef9e5644eb57e79a36756274357 , < e09d1c6729ee4a7812128902d9274ff565f958b8 (git)
Affected: 1d32f7696286eef9e5644eb57e79a36756274357 , < 77b1718e39e5c9f6956fb60807326af20baf889d (git)
guessed Create a notification for this product.
Linux Linux Affected: 2.6.38
Unaffected: 0 , < 2.6.38 (semver)
Unaffected: 6.6.160 , ≤ 6.6.* (semver)
Unaffected: 6.12.112 , ≤ 6.12.* (semver)
Unaffected: 6.18.55 , ≤ 6.18.* (semver)
Unaffected: 7.2.9 , ≤ 7.2.* (semver)
Unaffected: 7.3 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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}



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