CVE-2026-72110High· 7.8▾ TwilightIn the Linux kernel, the following vulnerability has been resolved: bpf,fork: wipe ->bpf_storage before bailouts that access it Currently, copy_process() can bail out to free_task() before p->bpf_storage has been initialized, with this…
▾ Twilight zone — High severity, or a signal on a lesser flaw
impact 42.9 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
In the Linux kernel, the following vulnerability has been resolved:
bpf,fork: wipe ->bpf_storage before bailouts that access it
Currently, copy_process() can bail out to free_task() before p->bpf_storage has been initialized, with this call graph (shown here for the !CONFIG_MEMCG case):
copy_process dup_task_struct arch_dup_task_struct [copies the entire task_struct, including ->bpf_storage member] [RLIMIT_NPROC check fails] delayed_free_task free_task bpf_task_storage_free rcu_dereference(task->bpf_storage) bpf_local_storage_destroy
In this case, the nascent task's ->bpf_storage member that bpf_local_storage_destroy() operates on is a plain copy of the parent's ->bpf_storage pointer, not a real initialized pointer. This leads to badness (kernel hangs, UAF).
This is reachable as long as the process calling fork() has been inserted into a task storage map.
Linux >= a10787e6d58c24b51e91c19c6d16c5da89fcaa4b < 7df67a4799067a59e6a2d53f8059a6be6e73e678Linux >= a10787e6d58c24b51e91c19c6d16c5da89fcaa4b < aff686efd38728e06daf12417a0d7ed454ce4cffLinux >= a10787e6d58c24b51e91c19c6d16c5da89fcaa4b < c3fd6f28c7ce1142a3b23dbb840eaa4777de1d74Linux >= a10787e6d58c24b51e91c19c6d16c5da89fcaa4b < 9cff220ddb65b022cc668bb652200742476e744cLinux >= a10787e6d58c24b51e91c19c6d16c5da89fcaa4b < c4f626ddf2350652ad2f79daf1f10847f3f6eabdLinux >= a10787e6d58c24b51e91c19c6d16c5da89fcaa4b < 43f0005f81b8ce3be962d653cde8db9022f1e9b0Linux >= a10787e6d58c24b51e91c19c6d16c5da89fcaa4b < 9b51a6155d14389876916726430da30eabb1d4edLinux 5.13Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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