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CVE

CVE-2026-43208

net: do not pass flow_id to set_rps_cpu()
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CVE

CVE-2026-43208

net: do not pass flow_id to set_rps_cpu()

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

net: do not pass flowid to setrps_cpu()

Blamed commit made the assumption that the RPS table for each receive

queue would have the same size, and that it would not change.

Compute flowid in setrps_cpu(), do not assume we can use the value

computed by getrpscpu(). Otherwise we risk out-of-bound access

and/or crashes.

Package Versions Affected

Package Version
patch Availability
No items found.

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CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.8
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
0
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
C
H
U
-

Related Resources

No items found.

References

https://git.kernel.org/stable/c/5455a232edea6b946b99449f15ca771a8874a5a6, https://git.kernel.org/stable/c/8a8a9fac9efa6423fd74938b940cb7d731780718, https://git.kernel.org/stable/c/ed712dc0d64dee5f0d05e4d8ca57711f8a9c850c, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43208.json, https://nvd.nist.gov/vuln/detail/CVE-2026-43208, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Severity

9.8

CVSS Score
0
10

Basic Information

Base CVSS
9.8
EPSS Probability
0.00481%
EPSS Percentile
0.38331%
Introduced Version
48aa30443e52c9666d5cd5e67532e475f212337e,6.18.0,6.19.0,0
Fix Available
8a8a9fac9efa6423fd74938b940cb7d731780718,6.18.16,6.19.6,1:6.18.16-18.222.amzn2023,1:1.0-0.amzn2023

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