CVE-2026-68144Critical· 9.8▾ MidnightIn 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 …
▾ Midnight zone — Critical, or high with PoC / in-the-wild
impact 53.9 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Oct 16.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.5%
Last analysed / modified upstream
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.
Linux >= 9641458d3ec42def729fde64669abf07f3220cd5 < c4a52cb4da8d57d060b1d52085d25147a238dac2Linux >= 9641458d3ec42def729fde64669abf07f3220cd5 < df198743859fefba2f824115f8151dd62d7ad6d8Linux >= 9641458d3ec42def729fde64669abf07f3220cd5 < 1d81e19fc57a5ee55b4497d01bc0510d76fb9578Linux >= 9641458d3ec42def729fde64669abf07f3220cd5 < 8d931a75a38b9bb584a4071f5ebbd52755fc35eeLinux >= 9641458d3ec42def729fde64669abf07f3220cd5 < 17f78c0c0d41d738ee236eb6e841e39395188054Linux >= 9641458d3ec42def729fde64669abf07f3220cd5 < a48a889b60f73edb0399a8b08284a2ab0bd0295fLinux >= 9641458d3ec42def729fde64669abf07f3220cd5 < 25e3641beb51333bfbb155af2fd2573a61113af2Linux >= 9641458d3ec42def729fde64669abf07f3220cd5 < 0f71f852a96af9685858ce59fda34ecbf85c283dLinux 2.6.28Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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