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CVE-2026-43494
published 2026-05-21

CVE-2026-43494: 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…

PriorityP340high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.30%
22.1th percentile
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().

Affected

79 ranges· showing 25
VendorProductVersion rangeFixed in
linuxlinux
linuxlinux>= 0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 < c6e51512a784c4a7b86e1a044988696e3b3721fac6e51512a784c4a7b86e1a044988696e3b3721fa
linuxlinux>= 0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 < 03014551938a0887fa55f18ce49b70158a9c011303014551938a0887fa55f18ce49b70158a9c0113
linuxlinux>= 0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 < d84ce1786ce40fdd3dd98db47aec5527817e1ef6d84ce1786ce40fdd3dd98db47aec5527817e1ef6
linuxlinux>= 0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 < 9115669faedccdda100428e2d26fd0aac8c507999115669faedccdda100428e2d26fd0aac8c50799
linuxlinux>= 0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 < 0bbbff00a15b1df2cac9014d6cf4b6890f4733530bbbff00a15b1df2cac9014d6cf4b6890f473353
linuxlinux>= 0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 < 640e37f58f991546a87540d067279c2c1fa9fe51640e37f58f991546a87540d067279c2c1fa9fe51
linuxlinux>= 0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 < 290e833d1acb1093bc121fcdc97f5e6161157479290e833d1acb1093bc121fcdc97f5e6161157479
linuxlinux>= 0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3 < e174929793195e0cd6a4adb0cad731b39f9019b4e174929793195e0cd6a4adb0cad731b39f9019b4
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel
linuxlinux_kernel>= 4.17 < 5.10.2585.10.258
linuxlinux_kernel>= 5.11 < 5.15.2095.15.209
linuxlinux_kernel>= 5.16 < 6.1.1756.1.175
linuxlinux_kernel>= 6.13 < 6.18.336.18.33
linuxlinux_kernel>= 6.19 < 7.0.107.0.10
linuxlinux_kernel>= 6.2 < 6.6.1416.6.141
linuxlinux_kernel>= 6.7 < 6.12.916.12.91
ubuntulinux
ubuntulinux-aws
ubuntulinux-aws-5.15
ubuntulinux-aws-5.4
ubuntulinux-aws-6.17

CVSS provenance

nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
vendor_ubuntu8.8HIGH
vendor_redhat7.0HIGH
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