CVE-2026-43215

We used to use the cifs_tcp_ses_lock to protect a lot of objects that are not just the server, ses or tcon lists. We later introduced srv_lock, ses_lock and tc_lock to protect fields within the corresponding structs. This was done to provide a more granular protection and avoid unnecessary serialization.

There were still a couple of uses of cifs_tcp_ses_lock to provide tcon fields. In this patch, I've replaced them with tc_lock.

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43215.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

d7d7a66aacd6fd8ca57baf08a7bac5421282f6f8

Fixed

953953abb66e52c224057ab91e404284fefeab62

Fixed

601dd3b79769b38d30b693c40afdb2a4b7edf9d0

Fixed

3969db6b22e3d90d8c5f22ac1a7fe0350a94c136

Fixed

8c59eeeeffa1524ef57e173a89a1a3ff539888d5

Fixed

96c4af418586ee9a6aab61738644366426e05316

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43215.json"

Linux / Kernel

Package

Name: Kernel

Affected ranges

Type: ECOSYSTEM
Events: Introduced

6.0.0

Fixed

6.6.128

Type: ECOSYSTEM
Events: Introduced

6.7.0

Fixed

6.12.75

Type: ECOSYSTEM
Events: Introduced

6.13.0

Fixed

6.18.16

Type: ECOSYSTEM
Events: Introduced

6.19.0

Fixed

6.19.6

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43215.json"