CVE-2026-90335

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Source
https://cve.org/CVERecord?id=CVE-2026-90335
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90335.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-90335
Downstream
Published
2026-09-17T16:08:48Z
Modified
2026-09-18T03:48:37Z
Summary
tty: skip cdev_del() when no cdev is registered
Details

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

tty: skip cdev_del() when no cdev is registered

TTY device registration can fail before a cdev is allocated. Serial core keeps the port so setserial can still use it, and later removal passes the NULL cdev slot to cdev_del(), causing a NULL-pointer dereference.

Only delete the cdev when the slot is not NULL.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90335.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
a3a10ce3429e5dee623ad5c8407ea58e204fcb0a
Fixed
3dbf85ef40b6366ba15e882f7536cdc98bea579a
Fixed
c3b5623fd97648f2747444aa8932ae604662df93

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90335.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
4.3.0
Fixed
7.2.6

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90335.json"