CVE-2026-31623
- Source
- https://cve.org/CVERecord?id=CVE-2026-31623
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-31623.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2026-31623
- Downstream
- Related
- Published
- 2026-04-24T14:42:40.566Z
- Modified
- 2026-06-18T03:57:40.207098463Z
- Summary
- net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
net: usb: cdc-phonet: fix skb frags[] overflow in rx_complete()
A malicious USB device claiming to be a CDC Phonet modem can overflow the skbsharedinfo->frags[] array by sending an unbounded sequence of full-page bulk transfers.
Drop the skb and increment the length error when the frag limit is reached. This matches the same fix that commit f0813bcd2d9d ("net: wwan: t7xx: fix potential skb->frags overflow in RX path") did for the t7xx driver.
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31623.json" }- References
-
- https://git.kernel.org/stable/c/0c5c65a17db729fc63ab656bdaaf0e675a9dbeac
- https://git.kernel.org/stable/c/600dc40554dc5ad1e6f3af51f700228033f43ea7
- https://git.kernel.org/stable/c/6053620fdbcd89fa7e755644efdaab78e0daaae7
- https://git.kernel.org/stable/c/6807ff49bf796b3823b1e29f97b69316a40a9a94
- https://git.kernel.org/stable/c/9989938d13cc5ba8447eeed5a61acfcf61bc6801
- https://git.kernel.org/stable/c/a23b1b1aaf41e174181d5853a70e65d4d01e648c
- https://git.kernel.org/stable/c/c183d5775129a0a7495bd61a6e57ec230dcf01e5
- https://git.kernel.org/stable/c/d4e1946bea8d6441835eb3fd09b19237ba366a6f
- https://git.kernel.org/stable/c/ebf75c6301c4972a87542ebf2d994c6391eb5d46
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31623.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-31623
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introduced87cf65601e1709e57f7e28f0f7b3eb0a992c1782Fixed6807ff49bf796b3823b1e29f97b69316a40a9a94Fixed0c5c65a17db729fc63ab656bdaaf0e675a9dbeacFixed6053620fdbcd89fa7e755644efdaab78e0daaae7Fixedd4e1946bea8d6441835eb3fd09b19237ba366a6fFixeda23b1b1aaf41e174181d5853a70e65d4d01e648cFixedc183d5775129a0a7495bd61a6e57ec230dcf01e5Fixedebf75c6301c4972a87542ebf2d994c6391eb5d46Fixed9989938d13cc5ba8447eeed5a61acfcf61bc6801Fixed600dc40554dc5ad1e6f3af51f700228033f43ea7
Linux / Kernel
Package
- Name
- Kernel
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced2.6.31Fixed5.10.258
- Type
- ECOSYSTEM
- Events
-
Introduced5.11.0Fixed5.15.209
- Type
- ECOSYSTEM
- Events
-
Introduced5.16.0Fixed6.1.175
- Type
- ECOSYSTEM
- Events
-
Introduced6.2.0Fixed6.6.136
- Type
- ECOSYSTEM
- Events
-
Introduced6.7.0Fixed6.12.83
- Type
- ECOSYSTEM
- Events
-
Introduced6.13.0Fixed6.18.24
- Type
- ECOSYSTEM
- Events
-
Introduced6.19.0Fixed6.19.14
- Type
- ECOSYSTEM
- Events
-
Introduced6.20.0Fixed7.0.1