Critical 9.8Published Aug 15, 2026

CVE-2026-74427afs: Fix netns teardown to cancel the preallocation charger

Updated under an hour ago (Oct 27, 2026, 9:30 PM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: afs: Fix netns teardown to cancel the preallocation charger Fix the teardown of an afs network namespace to make sure it cancels the work item that keeps the preallocated rxrpc call/conn/peer queue charged before incoming calls are disabled (i.e. listen 0). Also, if net->live is false because the afs netns is being deleted, make afs_charge_preallocation() skip charging and make afs_rx_new_call() avoid requeuing the charger. (This was found by AI review).

CVSS: 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Received
Record last updated: Oct 16, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before 63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9; from 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1; from 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before 59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a; from 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before 85d5fb80fe4f0cc836b6df83f26de204fe102ff7; from 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before a33975ff2b6ea47b8f29956403374b1cdd057539; from 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before b83ecf80e28afb7b6595ba79932e77ca68a5a83d; from 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before eec89c5f8e1adc1de4824042ef75f62aed804153; from 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before 47694fbc9d24ab6bf210f91e8efe06a10a478064	CNA record

References

References

https://git.kernel.org/stable/c/63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9
https://git.kernel.org/stable/c/f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1
https://git.kernel.org/stable/c/59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a
https://git.kernel.org/stable/c/85d5fb80fe4f0cc836b6df83f26de204fe102ff7
https://git.kernel.org/stable/c/a33975ff2b6ea47b8f29956403374b1cdd057539
https://git.kernel.org/stable/c/b83ecf80e28afb7b6595ba79932e77ca68a5a83d
https://git.kernel.org/stable/c/eec89c5f8e1adc1de4824042ef75f62aed804153
https://git.kernel.org/stable/c/47694fbc9d24ab6bf210f91e8efe06a10a478064

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.