cbcvebase.
CVE-2026-45838
published 2026-05-27

CVE-2026-45838: In the Linux kernel, the following vulnerability has been resolved: bpf: fix end-of-list detection in cgroup_storage_get_next_key() list_next_entry() never…

medium5.5
In the Linux kernel, the following vulnerability has been resolved: bpf: fix end-of-list detection in cgroup_storage_get_next_key() list_next_entry() never returns NULL -- when the current element is the last entry it wraps to the list head via container_of(). The subsequent NULL check is therefore dead code and get_next_key() never returns -ENOENT for the last element, instead reading storage->key from a bogus pointer that aliases internal map fields and copying the result to userspace. Replace it with list_entry_is_head() so the function correctly returns -ENOENT when there are no more entries.

Affected

10 ranges
VendorProductVersion rangeFixed in
linuxlinux——
linuxlinux>= de9cbbaadba5adf88a19e46df61f7054000838f6 < 0f3d9dd5e1fd52b39e25328307c6a694e994ffe30f3d9dd5e1fd52b39e25328307c6a694e994ffe3
linuxlinux>= de9cbbaadba5adf88a19e46df61f7054000838f6 < 26d3339e465e54107bd85884341d1609c5300d6a26d3339e465e54107bd85884341d1609c5300d6a
linuxlinux>= de9cbbaadba5adf88a19e46df61f7054000838f6 < 2c88b2d96e1d4d0c7c4589a4593d4cdee6d332d62c88b2d96e1d4d0c7c4589a4593d4cdee6d332d6
linuxlinux>= de9cbbaadba5adf88a19e46df61f7054000838f6 < b4b5a20bed82130da2f2818f04d52378952fbd0bb4b5a20bed82130da2f2818f04d52378952fbd0b
linuxlinux>= de9cbbaadba5adf88a19e46df61f7054000838f6 < 85a2f30e40f7468db732f55659bc6318874f49af85a2f30e40f7468db732f55659bc6318874f49af
linuxlinux>= de9cbbaadba5adf88a19e46df61f7054000838f6 < 32ce55d424395904986f5066f8755f6cb999337732ce55d424395904986f5066f8755f6cb9993377
linuxlinux>= de9cbbaadba5adf88a19e46df61f7054000838f6 < fc39753b7f92e09177777e9c648afe5aa3abb81ffc39753b7f92e09177777e9c648afe5aa3abb81f
linuxlinux>= de9cbbaadba5adf88a19e46df61f7054000838f6 < 5828b9e5b272ecff7cf5d345128d3de7324117f75828b9e5b272ecff7cf5d345128d3de7324117f7
linuxlinux_kernel——