CVE-2026-74626

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Source
https://cve.org/CVERecord?id=CVE-2026-74626
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74626.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-74626
Downstream
Published
2026-08-22T15:32:08Z
Modified
2026-08-28T03:47:15Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
NTB: ntb_netdev: Preserve RX queue depth on allocation failure
Details

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

NTB: ntb_netdev: Preserve RX queue depth on allocation failure

ntb_netdev_rx_handler() hands the received skb to the network stack before allocating its replacement. If the allocation fails, nothing is reposted. Every failure therefore takes one buffer out of the RX queue while the interface remains up, and enough failures eventually stall reception.

A retry path could refill the queue later, but ntb_netdev has none. Allocate the replacement first instead. If that fails, drop the packet and repost the same skb. This keeps the queue full and lets packet delivery resume as soon as memory is available again.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/74xxx/CVE-2026-74626.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
548c237c0a9972df5d1afaca38aa733ee577128d
Fixed
6d7f8a23c130d768c0976c2578b214353674e18f
Fixed
18781cc0bfb5c7f2a51ac6d678a28f101b7c35c5
Fixed
272df0fbe6f3e04e22bc67fbdd9ac24586b942f4
Fixed
fcaf8ba7e56bb73319ac107a63b907d59536192c
Fixed
3f2a15f33f86f7bd5b920669fd40c06725d72a1e
Fixed
a4e340971fe8ccd245d206db4d43b2a0eec240bd
Fixed
755fd7843f300d724caceabdf9bb13adc8701540
Fixed
d2121faf133ac3bf9531b53a7e21273649a08517

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74626.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.9.0
Fixed
5.10.267
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.218
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.185
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.154
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.106
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.46
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-74626.json"