CVE-2026-74379
CVE CVE-2026-74379EUVD EUVD-2026-59526Published 2026-08-15T05:58:57.000ZLast changed 2026-08-17T05:18:16.000Z
What the advisory describes
In the Linux kernel, the following vulnerability has been resolved: dax/kmem: account for partial discontiguous resource upon removal When dev_dax_kmem_probe() partially succeeds (at least one range is mapped) but a subsequent range fails request_mem_region() or add_memory_driver_managed(), the probe silently continues, ultimately returning success, but with the corresponding range resource NULL'ed out. dev_dax_kmem_remove() iterates over all dax_device ranges regardless of if the underlying resource exists. When remove_memory() is called later, it returns 0 because the memory was never added which causes dev_dax_kmem_remove() to incorrectly assume the (nonexistent) resource can be removed and attempts cleanup on a NULL pointer. Fix this by skipping these ranges altogether, noting that these cases are considered success, such that the cleanup is still reached when all actually-added ranges are successfully removed.
Source: EUVD (ENISA), in the words of the advisory.
Products the advisory names
These come from the advisory itself, not from any check we performed.
- Linux — Linux patch: 0; 60e93dc097f7f13a16a7e4b75b8803eb2adbb721 <5d3139abb9d1671fa5e42c3d6d8cb3b05479c5bb; 60e93dc097f7f13a16a7e4b75b8803eb2adbb721 <598ed7393a639c7547b28ff3e14db9f1ac37c132; patch: 6.12.97; patch: 6.6.145; 60e93dc097f7f13a16a7e4b75b8803eb2adbb721 <30ea97affbcce236c57287c82dc6ef7a29c63b76; 60e93dc097f7f13a16a7e4b75b8803eb2adbb721 <8aa442cfce79e2d69e72fc8e0c0864ac2971149d; patch: 5.15.212; patch: 7.1.5; patch: 7.2; patch: 6.18.40; 60e93dc097f7f13a16a7e4b75b8803eb2adbb721 <799e54c510a03a65a57627018a817838d72f35bd; 60e93dc097f7f13a16a7e4b75b8803eb2adbb721 <d47b0b8a69a13e06afafa54723f3e8c99b0c788f; patch: 6.1.178; 60e93dc097f7f13a16a7e4b75b8803eb2adbb721 <ef4fc53898bd6c4d0119cc6d419ebef7f2560f31; 5.10
The versions shown are the advisory's own. Patchlage compares no version numbers and derives no judgement from them — which version is installed is something a person has to look up.
Carried in the product catalogue
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- Linux — Linux
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