CVE-2023-54312

In the Linux kernel, the following vulnerability has been resolved: samples/bpf: Fix buffer overflow in tcpbasertt Using sizeofnv or strlennv+1 is correct...

UBUNTU-CVE-2023-54173

In the Linux kernel, the following vulnerability has been resolved: bpf: Disable preemption in bpfeventoutput We received report 1 of kernel crash, which is caused by using nesting protection without disabled preemption. The bpfeventoutput can be called by programs executed by bpfprogrunarraycg...

UBUNTU-CVE-2022-50883

In the Linux kernel, the following vulnerability has been resolved: bpf: Prevent decltag from being referenced in funcproto arg Syzkaller managed to hit another decltag issue: btffuncprotocheck kernel/bpf/btf.c:4506 inline btfcheckalltypes kernel/bpf/btf.c:4734 inline btfparsetypesec+0x1175/0x198...

CVE-2022-50883

In the Linux kernel, the following vulnerability has been resolved: bpf: Prevent decltag from being referenced in funcproto arg Syzkaller managed to hit another decltag issue: btffuncprotocheck kernel/bpf/btf.c:4506 inline btfcheckalltypes kernel/bpf/btf.c:4734 inline btfparsetypesec+0x1175/0x198...

CVE-2023-54181

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix issue in verifying allowptrleaks After we converted the capabilities of our networking-bpf program from capsysadmin to capnetadmin+capbpf, our networking-bpf program failed to start. Because it failed the bpf verifier, a...

UBUNTU-CVE-2023-54247

In the Linux kernel, the following vulnerability has been resolved: bpf: Silence a warning in btftypeidsize syzbot reported a warning in 1 with the following stacktrace: WARNING: CPU: 0 PID: 5005 at kernel/bpf/btf.c:1988 btftypeidsize+0x2d9/0x9d0 kernel/bpf/btf.c:1988 ... RIP:...

CVE-2023-54312

CVE-2023-54312: Technical details (affected product/version, root cause, exploitation) are not provided in the connected documents. No public details available here; monitor vendor advisories for updates.

CVE-2023-54283

CVE-2023-54283 is a Linux kernel vulnerability related to a data-race in the BPF LRU list code. Kernel Concurrency Sanitizer detected a race on accessing node->ref in __bpf_lru_list_rotate/__htab_lru_percpu_map_update_elem, leading to a write of 1 byte and a read of 1 byte across CPUs. The fix...

CVE-2023-54283 bpf: Address KCSAN report on bpf_lru_list

In the Linux kernel, the following vulnerability has been resolved: bpf: Address KCSAN report on bpflrulist KCSAN reported a data-race when accessing node-ref. Although node-ref does not have to be accurate, take this chance to use a more common READONCE and WRITEONCE pattern instead of datarace...

CVE-2023-54247 bpf: Silence a warning in btf_type_id_size()

In the Linux kernel, the following vulnerability has been resolved: bpf: Silence a warning in btftypeidsize syzbot reported a warning in 1 with the following stacktrace: WARNING: CPU: 0 PID: 5005 at kernel/bpf/btf.c:1988 btftypeidsize+0x2d9/0x9d0 kernel/bpf/btf.c:1988 ... RIP:...

CVE-2023-54247

CVE-2023-54247: In the Linux kernel, the BPF code silences a WARN_ON_ONCE in btf_type_id_size() when handling DECL_TAG by adding DECL_TAG to the btf_type_nosize set, causing btf_type_id_size() to return NULL earlier. This fixes a spurious warning without indicating a correctness issue; no exploit...

CVE-2022-50855

The CVE-2022-50855 entry concerns a Linux kernel issue where the BPF LSM program attached via bpf_prog_attach to cgroups could leak because the refcnt wasn’t decremented when the validation rejected the attach. The published description across Red Hat, SUSE, Ubuntu (OSV), Debian OSV, NVD, and oth...

CVE-2022-50855 bpf: prevent leak of lsm program after failed attach

In the Linux kernel, the following vulnerability has been resolved: bpf: prevent leak of lsm program after failed attach In 0, we added the ability to bpfprogattach LSM programs to cgroups, but in our validation to make sure the prog is meant to be attached to BPFLSMCGROUP, we return too early if...

CVE-2023-54181

CVE-2023-54181 concerns the Linux kernel BPF verifier: after migrating networking-bpf capabilities from cap_sys_admin to cap_net_admin+cap_bpf, the verifier incorrectly flagged a two-pointer comparison as a leak, blocking program startup. A patch fixes the allow_ptr_leaks check, addressing the fa...

CVE-2023-54173

Technical details about CVE-2023-54173 are not present in the provided Connected documents. The documents discuss a Linux kernel BPF preemption issue but do not specify products, versions, or fixes. Monitor vendor advisories for updates and remediation.

CVE-2023-54173

In the Linux kernel, the following vulnerability has been resolved: bpf: Disable preemption in bpfeventoutput We received report 1 of kernel crash, which is caused by using nesting protection without disabled preemption. The bpfeventoutput can be called by programs executed by bpfprogrunarraycg...

CVE-2023-54173 bpf: Disable preemption in bpf_event_output

In the Linux kernel, the following vulnerability has been resolved: bpf: Disable preemption in bpfeventoutput We received report 1 of kernel crash, which is caused by using nesting protection without disabled preemption. The bpfeventoutput can be called by programs executed by bpfprogrunarraycg...

PT-2025-54129

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contained a data-race condition when accessing node-ref within the bpf lru list functionality. Kernel Concurrency Sanitizer KCSAN identified this issue during operations...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the bpfeventoutput function not disabling preemption, which could cause the kernel to crash...

Unity Linux 20.1060e / 20.1070e Security Update: kernel (UTSA-2025-992347)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-992347 advisory. In the Linux kernel, the following vulnerability has been resolved: bpf: Don't redirect packets with invalid pktlen Syzbot found an issue 1: fqcodeldrop try to drop ...