5.5

CVE-2026-23442

ipv6: add NULL checks for idev in SRv6 paths

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

ipv6: add NULL checks for idev in SRv6 paths

__in6_dev_get() can return NULL when the device has no IPv6 configuration
(e.g. MTU < IPV6_MIN_MTU or after NETDEV_UNREGISTER).

Add NULL checks for idev returned by __in6_dev_get() in both
seg6_hmac_validate_skb() and ipv6_srh_rcv() to prevent potential NULL
pointer dereferences.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 4.10.1 < 6.12.83
Linux ≫ Linux Kernel Version >= 6.13 < 6.19.10
Linux ≫ Linux Kernel Version4.10 Update-
Linux ≫ Linux Kernel Version7.0 Updaterc1
Linux ≫ Linux Kernel Version7.0 Updaterc2
Linux ≫ Linux Kernel Version7.0 Updaterc3
Linux ≫ Linux Kernel Version7.0 Updaterc4
Linux ≫ Linux Kernel Version7.0 Updaterc5
Linux ≫ Linux Kernel Version7.0 Updaterc6
Linux ≫ Linux Kernel Version7.0 Updaterc7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.024
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://git.kernel.org/stable/c/a25853c9feea7bbf31d157ff6e004d2d3b4f7f13
Patch
https://git.kernel.org/stable/c/06413793526251870e20402c39930804f14d59c0
Patch
https://git.kernel.org/stable/c/bc9843c39f9932a8b36efd1d362ea00bb88e4e78
Patch
https://git.kernel.org/stable/c/50352fc103928e10e8729abc79a0d05abef26c4d
https://git.kernel.org/stable/c/c5cedee5d97382176573bbe21e1724e737a5eb64
https://git.kernel.org/stable/c/0348fa0ada37cef7c6b5ab2a428bb2c6aee784e4
https://git.kernel.org/stable/c/83d705d35e583cb1b1eacf196dfe7b77d442018e
https://git.kernel.org/stable/c/d1bd8b9edc6752d10f84d28ff64f842401ce336d