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CVE-2026-68144 Details

Description

In the Linux kernel, the following vulnerability has been resolved: phonet: pep: fix use-after-free in pep_get_sb() pep_get_sb() doesn't consider that pskb_may_pull() might have relocated the skb data, and continue to access the older pointer, causing UAF. Reproduced under KASAN: BUG: KASAN: slab-use-after-free in pep_get_sb+0x234/0x3b0 Read of size 1 at addr ff11000105510f50 by task repro/157 pep_get_sb+0x234/0x3b0 pipe_handler_do_rcv+0x5f7/0xa10 pep_do_rcv+0x203/0x410 __sk_receive_skb+0x471/0x4a0 phonet_rcv+0x5b3/0x6c0 __netif_receive_skb+0xcc/0x1d0 Refetch the header with skb_header_pointer() after pskb_may_pull(), so the possibly stale pointer is no longer dereferenced. There are better ways to solve this, but, this is the less instrusive one.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: kernel.orgCVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://git.kernel.org/stable/c/0f71f852a96af9685858ce59fda34ecbf85c283d	kernel.org
https://git.kernel.org/stable/c/17f78c0c0d41d738ee236eb6e841e39395188054	kernel.org
https://git.kernel.org/stable/c/1d81e19fc57a5ee55b4497d01bc0510d76fb9578	kernel.org
https://git.kernel.org/stable/c/25e3641beb51333bfbb155af2fd2573a61113af2	kernel.org
https://git.kernel.org/stable/c/8d931a75a38b9bb584a4071f5ebbd52755fc35ee	kernel.org
https://git.kernel.org/stable/c/a48a889b60f73edb0399a8b08284a2ab0bd0295f	kernel.org
https://git.kernel.org/stable/c/c4a52cb4da8d57d060b1d52085d25147a238dac2	kernel.org
https://git.kernel.org/stable/c/df198743859fefba2f824115f8151dd62d7ad6d8	kernel.org

see all 8 references

Weakness Enumeration

No weakness enumeration is available for this CVE.

Affected Products

No affected product data is available for this CVE.

Change History

4 change records found show changes

Date	Action	Recorded By
Aug 19, 2026	CVE Modified	kernel.org
Aug 17, 2026	CVE Modified	kernel.org
Aug 13, 2026	CVE Modified	kernel.org
Aug 10, 2026	New CVE Received	kernel.org