Critical severity · published Aug 15, 2026
CVE-2026-74427
afs: Fix netns teardown to cancel the preallocation charger
9.8
CVSS
0.8%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 55% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LI
Linux · Linux
00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before 63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9; 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before f5096e18b6b7fbd1c2a1942e275a51bcfdfb2ad1; 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before 59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a; 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before 85d5fb80fe4f0cc836b6df83f26de204fe102ff7; 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before a33975ff2b6ea47b8f29956403374b1cdd057539; 00e907127e6f86d0f9b122d9b4347a8aa09a8b61 before b83ecf80e28afb7b6595ba79932e77ca68a5a83d; +3 more · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-74427
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-74427
git.kernel.org
https://git.kernel.org/stable/c/47694fbc9d24ab6bf210f91e8efe06a10a478064
git.kernel.org
https://git.kernel.org/stable/c/59e8b7652f6cbfb62d377ead0ad553c1b4e39a7a
git.kernel.org
https://git.kernel.org/stable/c/63ccaf1bdf8be2330f47f9b5b233dd3fd04acbd9
git.kernel.org
https://git.kernel.org/stable/c/85d5fb80fe4f0cc836b6df83f26de204fe102ff7
git.kernel.org
https://git.kernel.org/stable/c/a33975ff2b6ea47b8f29956403374b1cdd057539
git.kernel.org
https://git.kernel.org/stable/c/b83ecf80e28afb7b6595ba79932e77ca68a5a83d
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