Answer in brief
CVE-2025-68742 records a Unknown severity vulnerability in bpf: Fix invalid prog->stats access when update_effective_progs fails. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. 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), Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFP (generic), Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP (generic) and additional mapped packages. Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=492ecee892c2a4ba6a14903d5d586ff750b7e805 <93d1964773ff513c9bd530f7686d3e48b786fa6b || >=492ecee892c2a4ba6a14903d5d586ff750b7e805 <bf2c990b012100610c0f1ec5c4ea434da2d080c2 || >=492ecee892c2a4ba6a14903d5d586ff750b7e805 <539137e3038ce6f953efd72110110f03c14c7d97 || >=492ecee892c2a4ba6a14903d5d586ff750b7e805 <56905bb70c8b88421709bb4e32fcba617aa37d41 || >=492ecee892c2a4ba6a14903d5d586ff750b7e805 <2579c356ccd35d06238b176e4b460978186d804b || >=492ecee892c2a4ba6a14903d5d586ff750b7e805 <7dc211c1159d991db609bdf4b0fb9033c04adcbc | 93d1964773ff513c9bd530f7686d3e48b786fa6b, bf2c990b012100610c0f1ec5c4ea434da2d080c2, 539137e3038ce6f953efd72110110f03c14c7d97, 56905bb70c8b88421709bb4e32fcba617aa37d41, 2579c356ccd35d06238b176e4b460978186d804b, 7dc211c1159d991db609bdf4b0fb9033c04adcbc |
| Linux/Linuxgeneric | 5.1 | Not reported |
| Siemens/SIMATIC S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIMATIC S7-1500 CPU 1518F-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
| Siemens/SIPLUS S7-1500 CPU 1518-4 PN/DP MFPgeneric | >=V3.1.6 <* | * |
Published upstream
Dec 24, 2025
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Sep 8, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Jul 14, 2026
In the Linux kernel, the following vulnerability has been resolved: bpf: Fix invalid prog->stats access when update_effective_progs fails Syzkaller triggers an invalid memory access issue following fault injection in update_effective_progs. The issue can be described as follows: __cgroup_bpf_detach update_effective_progs compute_effective_progs bpf_prog_array_alloc <-- fault inject purge_effective_progs /* change to dummy_bpf_prog */ array->items[index] = &dummy_bpf_prog.prog ---softirq start--- __do_softirq ... __cgroup_bpf_run_filter_skb __bpf_prog_run_save_cb bpf_prog_run stats = this_cpu_ptr(prog->stats) /* invalid memory access */ flags = u64_stats_update_begin_irqsave(&stats->syncp) ---softirq end--- static_branch_dec(&cgroup_bpf_enabled_key[atype]) The reason is that fault injection caused update_effective_progs to fail and then changed the original prog into dummy_bpf_prog.prog in purge_effective_progs. Then a softirq came, and accessing the members of dummy_bpf_prog.prog in the softirq triggers invalid mem access. To fix it, skip updating stats when stats is NULL.
Quoted source text, attributed separately from HOL analysis.