5.5

CVE-2026-46098

net: caif: clear client service pointer on teardown

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

net: caif: clear client service pointer on teardown

`caif_connect()` can tear down an existing client after remote shutdown by
calling `caif_disconnect_client()` followed by `caif_free_client()`.
`caif_free_client()` releases the service layer referenced by
`adap_layer->dn`, but leaves that pointer stale.

When the socket is later destroyed, `caif_sock_destructor()` calls
`caif_free_client()` again and dereferences the freed service pointer.

Clear the client/service links before releasing the service object so
repeated teardown becomes harmless.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Linux ≫ Linux Kernel Version >= 3.0 < 5.10.258
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.209
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.175
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.140
Linux ≫ Linux Kernel Version >= 6.7 < 6.12.86
Linux ≫ Linux Kernel Version >= 6.13 < 6.18.27
Linux ≫ Linux Kernel Version >= 6.19 < 7.0.4
VulnDex Vulnerability Enrichment
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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/914c6456fcfc21a3d553945dff62fd1621d6155d
Patch
https://git.kernel.org/stable/c/3ac6db584d9d420267bb8413115707eeec76d9cf
Patch
https://git.kernel.org/stable/c/63d21a3aa0108b9dde4e99b0d3d5d679ac68c0f9
Patch
https://git.kernel.org/stable/c/a4b191ddc12c55ddb62feb096536f819f384d6f1
Patch
https://git.kernel.org/stable/c/f7cf8ece8cee3c1ee361991470cdb1eb65ab02e8
Patch
https://git.kernel.org/stable/c/7ef97d4675b05a103648bd9244d91dff7d8c08b0
Patch
https://git.kernel.org/stable/c/cffca7a18b8f9de7c3d3013a1f5740c412b2a501
Patch
https://git.kernel.org/stable/c/e16859f3f4426fa349bc5519d582a93d28f5a15d
Patch