CVE-2025-21922

In the Linux kernel, the following vulnerability has been resolved: ppp: Fix KMSAN uninit-value warning with bpf Syzbot caught an "KMSAN: uninit-value" warning 1, which is caused by the ppp driver not initializing a 2-byte header when using socket filter. The following code can generate a PPP...

AZL-59934 CVE-2025-21922 affecting package kernel for versions less than 6.6.85.1-2

In the Linux kernel, the following vulnerability has been resolved: ppp: Fix KMSAN uninit-value warning with bpf Syzbot caught an "KMSAN: uninit-value" warning 1, which is caused by the ppp driver not initializing a 2-byte header when using socket filter. The following code can generate a PPP...

CVE-2025-21922 ppp: Fix KMSAN uninit-value warning with bpf

In the Linux kernel, the following vulnerability has been resolved: ppp: Fix KMSAN uninit-value warning with bpf Syzbot caught an "KMSAN: uninit-value" warning 1, which is caused by the ppp driver not initializing a 2-byte header when using socket filter. The following code can generate a PPP...

CVE-2025-21922

CVE-2025-21922 concerns a Linux kernel PPP driver issue where a 2-byte header used by socket filter/BPF is not fully initialized, triggering a KMSAN “uninit-value” warning. The root cause, as described, is that only the first byte of the direction indicator is initialized while the second byte re...

CVE-2025-21922 ppp: Fix KMSAN uninit-value warning with bpf

In the Linux kernel, the following vulnerability has been resolved: ppp: Fix KMSAN uninit-value warning with bpf Syzbot caught an "KMSAN: uninit-value" warning 1, which is caused by the ppp driver not initializing a 2-byte header when using socket filter. The following code can generate a PPP...

bpf,perf: Fix invalid prog_array access in perf_event_detach_bpf_prog

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bpf: Fix UAF via mismatching bpf_prog/attachment RCU flavors

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SUSE CVE-2024-58088

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix deadlock when freeing cgroup storage The following commit bc235cdb423a "bpf: Prevent deadlock from recursive bpftaskstorageget|delete" first introduced deadlock prevention for fentry/fexit programs attaching on...

CVE-2025-21852

In the Linux kernel, the following vulnerability has been resolved: net: Add rxskb of kfreeskb to rawtpnullargs. Yan Zhai reported a BPF prog could trigger a null-ptr-deref 0 in tracekfreeskb if the prog does not check if rxsk is NULL. Commit c53795d48ee8 "net: add rxsk to tracekfreeskb" added rx...

CVE-2025-21852 net: Add rx_skb of kfree_skb to raw_tp_null_args[].

In the Linux kernel, the following vulnerability has been resolved: net: Add rxskb of kfreeskb to rawtpnullargs. Yan Zhai reported a BPF prog could trigger a null-ptr-deref 0 in tracekfreeskb if the prog does not check if rxsk is NULL. Commit c53795d48ee8 "net: add rxsk to tracekfreeskb" added rx...

CVE-2025-21852 net: Add rx_skb of kfree_skb to raw_tp_null_args[].

In the Linux kernel, the following vulnerability has been resolved: net: Add rxskb of kfreeskb to rawtpnullargs. Yan Zhai reported a BPF prog could trigger a null-ptr-deref 0 in tracekfreeskb if the prog does not check if rxsk is NULL. Commit c53795d48ee8 "net: add rxsk to tracekfreeskb" added rx...

CVE-2025-21852

Concisely: CVE-2025-21852 affects the Linux kernel net/BPF path where trace_kfree_skb could dereference a NULL rx_sk when a BPF program loads a skb trace. The fix was to add kfree_skb to raw_tp_null_args[] to allow the BPF verifier to handle NULL rx_sk safely (PTR_MAYBE_NULL handling cited in the...

Linux Distros Unpatched Vulnerability : CVE-2024-56786

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: bpf: put bpflink's program when link is safe to be deallocated In general, BPF link's...

Linux Distros Unpatched Vulnerability : CVE-2024-56675

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: bpf: Fix UAF via mismatching bpfprog/attachment RCU flavors Uprobes always use...

Linux Distros Unpatched Vulnerability : CVE-2024-49888

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Fix a sdiv overflow issue Zac Ecob reported a problem where a bpf program may cause kernel crash due to the following error: Oops: divide error: 0000 1...

Linux Distros Unpatched Vulnerability : CVE-2024-49861

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Fix helper writes to read-only maps Lonial found an issue that despite user- and BPF-side frozen BPF map like in case of .rodata, it was still possible to...

Linux Distros Unpatched Vulnerability : CVE-2021-33624

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In kernel/bpf/verifier.c in the Linux kernel before 5.12.13, a branch can be mispredicted e.g., because of type confusion and consequently an unprivileged BPF...

Linux Distros Unpatched Vulnerability : CVE-2023-52828

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Detect IP == ksym.end as part of BPF program Now that bpfthrow kfunc is the first such call instruction that has noreturn semantics within the verifier, th...

Linux Distros Unpatched Vulnerability : CVE-2022-49697

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: bpf: Fix requestsock leak in sk lookup helpers A customer reported a requestsocket leak in a...

Linux Distros Unpatched Vulnerability : CVE-2024-38662

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - bpf: Allow delete from sockmap/sockhash only if update is allowed We have seen an influx of syzkaller reports where a BPF program attached to a tracepoint...