CVE-2026-80865

Unknown

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Add missing access_ok call to copy_user_syms As reported by sashiko we use __get_user without prior access_ok call on the user space pointer. Adding the missing call for the whole pointer array. Plus removing the err check in the error path, because it's not needed and also we can return -ENOMEM directly from the first kvmalloc_array fail path. [1] https://lore.kernel.org/bpf/[email protected]/

SeverityUnknown
CVSS—
Exploit probability—
ProductLinux
PublishedSep 4, 2026
First seenSep 4, 2026

How to fix

Update
  • Linux Linuxa67f7f9647cb243b3be32163e88e5bc76e3d51e9, 8b719cef5ac30ab83ce5693c5faf10e4944874af, 128391b57e0977c35243672a6f970073651f3831, 0b6252afcd1965f77c6a6f8a802a2e1381822b98, 28ce7bcf8a29aa395b60764df4c97be745de89d0, d5dc200c3a3f217de072af269dd90adddf90e48d or later

Affected products

ProductAffected versionsFixed in
Linux Linux0236fec57a15dc2a068dfe4488e0c2ab4559b1ec ≤ v < a67f7f9647cb243b3be32163e88e5bc76e3d51e9, 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec ≤ v < 8b719cef5ac30ab83ce5693c5faf10e4944874af, 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec ≤ v < 128391b57e0977c35243672a6f970073651f3831, 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec ≤ v < 0b6252afcd1965f77c6a6f8a802a2e1381822b98, 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec ≤ v < 28ce7bcf8a29aa395b60764df4c97be745de89d0, 0236fec57a15dc2a068dfe4488e0c2ab4559b1ec ≤ v < d5dc200c3a3f217de072af269dd90adddf90e48d, 5.19a67f7f9647cb243b3be32163e88e5bc76e3d51e9, 8b719cef5ac30ab83ce5693c5faf10e4944874af, 128391b57e0977c35243672a6f970073651f3831, 0b6252afcd1965f77c6a6f8a802a2e1381822b98, 28ce7bcf8a29aa395b60764df4c97be745de89d0, d5dc200c3a3f217de072af269dd90adddf90e48d

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CVE-2026-80865 · Linux · Dark Radar