In the Linux kernel, the following vulnerability has been resolved: net/rds: reset op_nents when zerocopy page pin fails When iov_iter_get_pages2() fails in rds_message_zcopy_from_user(), the pinned pages are released with put_page(), and rm->data.op_mmp_znotifier is cleared. But we fail to properly clear rm->data.op_nents. Later when rds_message_purge() is called from rds_sendmsg() the cleanup loop iterates over the incorrectly non zero number of op_nents and frees them again. Fix this by properly resetting op_nents when it should be in rds_message_zcopy_from_user().
Fix
Public exploits 7
- 0xBlackash/CVE-2026-43494 PoC on GitHub
- Kagantua/PinTheft-go PoC on GitHub
- Koshmare-Blossom/PinTheft-asm PoC on GitHub
- jayhutajulu1/CVE-2026-43494-PinTheft-PoC PoC on GitHub
- letsr00t/CVE-2026-43494-PinTheft-PoC PoC on GitHub
- suominen/pintheft PoC on GitHub
- tanzz1337/CVE-2026-43494-PinTheft-PoC PoC on GitHub
Each line links to the index that lists it, never to exploit code. Exploit-DB's "verified" and a Metasploit rank of good or better count as verified; a PoC-in-GitHub entry is a repository's claim.
Patch, vendor advisory and mitigation references on NVD 8
- https://git.kernel.org/stable/c/03014551938a0887fa55f18ce49b70158a9c0113 Patch
- https://git.kernel.org/stable/c/0bbbff00a15b1df2cac9014d6cf4b6890f473353 Patch
- https://git.kernel.org/stable/c/290e833d1acb1093bc121fcdc97f5e6161157479 Patch
- https://git.kernel.org/stable/c/640e37f58f991546a87540d067279c2c1fa9fe51 Patch
- https://git.kernel.org/stable/c/9115669faedccdda100428e2d26fd0aac8c50799 Patch
- https://git.kernel.org/stable/c/c6e51512a784c4a7b86e1a044988696e3b3721fa Patch
- https://git.kernel.org/stable/c/d84ce1786ce40fdd3dd98db47aec5527817e1ef6 Patch
- https://git.kernel.org/stable/c/e174929793195e0cd6a4adb0cad731b39f9019b4 Patch
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 2
- CwesCWE-1341 → CWE-415, CWE-1341NVD modified 2026-10-19 20:18
- First seenCVSS 7.8 · linuxNVD modified 2026-10-16 16:17
Affected (CPE criteria) 4
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:7.1:rc3:*:*:*:*:*:*
References 13
- https://git.kernel.org/stable/c/03014551938a0887fa55f18ce49b70158a9c0113 Patch
- https://git.kernel.org/stable/c/0bbbff00a15b1df2cac9014d6cf4b6890f473353 Patch
- https://git.kernel.org/stable/c/290e833d1acb1093bc121fcdc97f5e6161157479 Patch
- https://git.kernel.org/stable/c/640e37f58f991546a87540d067279c2c1fa9fe51 Patch
- https://git.kernel.org/stable/c/9115669faedccdda100428e2d26fd0aac8c50799 Patch
- https://git.kernel.org/stable/c/c6e51512a784c4a7b86e1a044988696e3b3721fa Patch
- https://git.kernel.org/stable/c/d84ce1786ce40fdd3dd98db47aec5527817e1ef6 Patch
- https://git.kernel.org/stable/c/e174929793195e0cd6a4adb0cad731b39f9019b4 Patch
- https://github.com/v12-security/pocs/tree/main/pintheft Exploit, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2026/05/21/2 Mailing List
- https://access.redhat.com/security/cve/CVE-2026-43494
- https://bugzilla.redhat.com/show_bug.cgi?id=2480434
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-43494.json