PT-2026-51977 · Linux · Linux

Publicado

2026-06-24

·

Atualizado

2026-06-24

·

CVE-2026-53083

Nenhuma

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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: 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
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Identificadores relacionados

CVE-2026-53083

Produtos afetados

Linux