CVE-2026-89636

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Source

https://cve.org/CVERecord?id=CVE-2026-89636

Import Source

JSON Data

https://api.osv.dev/v1/vulns/CVE-2026-89636

Downstream

Published

2026-09-11T19:45:30Z

Modified

2026-09-13T03:47:20Z

Summary

smb: client: clear ce->tgthint in free_tgts()

Details

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

smb: client: clear ce->tgthint in free_tgts()

When free_tgts() frees all structures in ce->tlist, ce->tgthint is left pointing to one of the freed cache_dfs_tgt structures.

If ce->tgthint is not reset before it is used later, it results in a use-after-free.

Set ce->tgthint to NULL in free_tgts() after the elements are freed to reflect that no elements remain.

Database specific

{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89636.json"
}

References

Affected packages

Type: GIT
Repo: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events: Introduced

54be1f6c1c37498bba557049df646cc239fa37e3

Fixed

7507bd1885643d0461a6017767492450af1ce2a3

Fixed

9ab46a13798a61d9d020b01d4e57efdabe6624fa

Fixed

5baab40404a9393bcc0b7b8f1950bf2c307e0984

Fixed

b1b741cf8e7ce1b91d937e23decd3d3358748700

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89636.json"

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89636.json"