Answer in brief
CVE-2026-53083 records a Medium severity (CVSS 5.5) vulnerability in bpf: Fix RCU stall in bpf_fd_array_map_clear(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 5.5. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Product | Affected versions | Fixed versions |
|---|---|---|
| cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | Not reported | Not reported |
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=da765a2f599304a81a25e77908d1790414ecdbb6 <419878a48085e6d5c2fcc4912eeaac2f8abf36ed || >=da765a2f599304a81a25e77908d1790414ecdbb6 <b1f7158a86f3cbac4d5a32beb55ca0f8027d44cd || >=da765a2f599304a81a25e77908d1790414ecdbb6 <71ddb7defc442ab38c53123c384fedbfd8410a15 || >=da765a2f599304a81a25e77908d1790414ecdbb6 <e1ed678855e315f90c70c1723e94157a9a82e660 || >=da765a2f599304a81a25e77908d1790414ecdbb6 <67bdb4b0d26f2d6bbf1798a925ef5a3b9ed7357a || >=da765a2f599304a81a25e77908d1790414ecdbb6 <4406942e65ca128c56c67443832988873c21d2e9 | 419878a48085e6d5c2fcc4912eeaac2f8abf36ed, b1f7158a86f3cbac4d5a32beb55ca0f8027d44cd, 71ddb7defc442ab38c53123c384fedbfd8410a15, e1ed678855e315f90c70c1723e94157a9a82e660, 67bdb4b0d26f2d6bbf1798a925ef5a3b9ed7357a, 4406942e65ca128c56c67443832988873c21d2e9 |
| Linux/Linuxgeneric | 5.5 | Not reported |
Published upstream
Jun 24, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 30, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jun 24, 2026
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix RCU stall in bpf_fd_array_map_clear() Add a missing cond_resched() in bpf_fd_array_map_clear() loop. For PROG_ARRAY maps with many entries this loop calls prog_array_map_poke_run() per entry which can be expensive, and without yielding this can cause RCU stalls under load: rcu: Stack dump where RCU GP kthread last ran: CPU: 0 UID: 0 PID: 30932 Comm: kworker/0:2 Not tainted 6.14.0-13195-g967e8def1100 #2 PREEMPT(undef) Workqueue: events prog_array_map_clear_deferred RIP: 0010:write_comp_data+0x38/0x90 kernel/kcov.c:246 Call Trace: <TASK> prog_array_map_poke_run+0x77/0x380 kernel/bpf/arraymap.c:1096 __fd_array_map_delete_elem+0x197/0x310 kernel/bpf/arraymap.c:925 bpf_fd_array_map_clear kernel/bpf/arraymap.c:1000 [inline] prog_array_map_clear_deferred+0x119/0x1b0 kernel/bpf/arraymap.c:1141 process_one_work+0x898/0x19d0 kernel/workqueue.c:3238 process_scheduled_works kernel/workqueue.c:3319 [inline] worker_thread+0x770/0x10b0 kernel/workqueue.c:3400 kthread+0x465/0x880 kernel/kthread.c:464 ret_from_fork+0x4d/0x80 arch/x86/kernel/process.c:153 ret_from_fork_asm+0x19/0x30 arch/x86/entry/entry_64.S:245 </TASK>
Quoted source text, attributed separately from HOL analysis.