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Tracker / CVE-2026-22994

CVE-2026-22994

Media 5.5

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix reference count leak in bpf_prog_test_run_xdp() syzbot is reporting unregister_netdevice: waiting for sit0 to become free. Usage count = 2 problem. A debug printk() patch found that a refcount is obtained at xdp_convert_md_to_buff() from bpf_prog_test_run_xdp(). According to commit ec94670fcb3b ("bpf: Support specifying ingress via xdp_md context in BPF_PROG_TEST_RUN"), the refcount obtained by xdp_convert_md_to_buff() will be released by xdp_convert_buff_to_md(). Therefore, we can consider that the error handling path introduced by commit 1c1949982524 ("bpf: introduce frags support to bpf_prog_test_run_xdp()") forgot to call xdp_convert_buff_to_md().

Prodotti e versioni affette

linux linux_kernel
linux linux_kernel · 5.18 → 6.1.161
linux linux_kernel · 6.13 → 6.18.6
linux linux_kernel · 6.2 → 6.6.121
linux linux_kernel · 6.7 → 6.12.66

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