kernel: bpf: Check rcu_read_lock_trace_held() before calling bpf map helpers

In the Linux kernel, the following vulnerability has been resolved: bpf: Check rcureadlocktraceheld before calling bpf map helpers These three bpfmaplookup,update,deleteelem helpers are also available for sleepable bpf program, so add the corresponding lock assertion for sleepable bpf program,...

kernel: bpf: Fix re-attachment branch in bpf_tracing_prog_attach

bpf: Fix re-attachment branch in bpftracingprogattach The following case can cause a crash due to missing attachbtf: 1 load rawtp program 2 load fentry program with rawtp as targetfd 3 create tracing link for fentry program with targetfd = 0 4 repeat 3 In the end we have: - prog-aux-dsttrampoline...

kernel: xsk: fix usage of multi-buffer BPF helpers for ZC XDP

In the Linux kernel, the following vulnerability has been resolved: xsk: fix usage of multi-buffer BPF helpers for ZC XDP Currently when packet is shrunk via bpfxdpadjusttail and memory type is set to MEMTYPEXSKBUFFPOOL, null ptr dereference happens: 1136314.192256 BUG: kernel NULL pointer...

Low: Red Hat Security Advisory: bcc security update

An update for bcc is now available for Red Hat Enterprise Linux 9. Red Hat Product Security has rated this update as having a security impact of Low. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE lin...

Moderate: oci-seccomp-bpf-hook security update

OCI Hook to generate seccomp json files based on EBF syscalls used by container oci-seccomp-bpf-hook provides a library for applications looking to use the Container Pod concept popularized by Kubernetes. Security Fixes: golang: net: malformed DNS message can cause infinite loop CVE-2024-24788 Fo...

RHEL 9 : bcc (RHSA-2024:9187)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2024:9187 advisory. BPF Compiler Collection BCC is a toolkit for easier creation of efficient kernel tracing and manipulation programs. BCC uses the extended Berkeley...

RHEL 9 : oci-seccomp-bpf-hook (RHSA-2024:9277)

The remote Redhat Enterprise Linux 9 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2024:9277 advisory. OCI Hook to generate seccomp json files based on EBF syscalls used by container oci-seccomp-bpf-hook provides a library for applications looking to u...

ALSA-2024:9187 Low: bcc security update

BPF Compiler Collection BCC is a toolkit for easier creation of efficient kernel tracing and manipulation programs. BCC uses the extended Berkeley Packet Filter eBPF tool. Security Fixes: bcc: unprivileged users can force loading of compromised linux headers CVE-2024-2314 For more details about t...

SUSE CVE-2024-50253

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the validity of nrwords in bpfiterbitsnew Check the validity of nrwords in bpfiterbitsnew. Without this check, when multiplication overflow occurs for nrbits e.g., when nrwords = 0x0400-0001, nrbits becomes 64, stack...

SUSE CVE-2024-50254

In the Linux kernel, the following vulnerability has been resolved: bpf: Free dynamically allocated bits in bpfiterbitsdestroy bpfiterbitsdestroy uses "kit-nrbits kmemleakalloc+0x4b/0x80 kmallocnodenoprof+0x480/0x5c0 alloc.isra.0+0x89/0xb0 allocbulk+0x2af/0x720 prefillmemcache+0x7f/0xb0...

CVE-2024-50262

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in triegetnextkey triegetnextkey allocates a node stack with size trie-maxprefixlen, while it writes trie-maxprefixlen + 1 nodes to the stack when it has full paths from the root to leaves. For exampl...

CVE-2024-50253

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the validity of nrwords in bpfiterbitsnew Check the validity of nrwords in bpfiterbitsnew. Without this check, when multiplication overflow occurs for nrbits e.g., when nrwords = 0x0400-0001, nrbits becomes 64, stack...

AZL-53042 CVE-2024-50262 affecting package kernel for versions less than 5.15.173.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in triegetnextkey triegetnextkey allocates a node stack with size trie-maxprefixlen, while it writes trie-maxprefixlen + 1 nodes to the stack when it has full paths from the root to leaves. For exampl...

DEBIAN-CVE-2024-50254

In the Linux kernel, the following vulnerability has been resolved: bpf: Free dynamically allocated bits in bpfiterbitsdestroy bpfiterbitsdestroy uses "kit-nrbits kmemleakalloc+0x4b/0x80 kmallocnodenoprof+0x480/0x5c0 alloc.isra.0+0x89/0xb0 allocbulk+0x2af/0x720 prefillmemcache+0x7f/0xb0...

DEBIAN-CVE-2024-50253

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the validity of nrwords in bpfiterbitsnew Check the validity of nrwords in bpfiterbitsnew. Without this check, when multiplication overflow occurs for nrbits e.g., when nrwords = 0x0400-0001, nrbits becomes 64, stack...

UBUNTU-CVE-2024-50253

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the validity of nrwords in bpfiterbitsnew Check the validity of nrwords in bpfiterbitsnew. Without this check, when multiplication overflow occurs for nrbits e.g., when nrwords = 0x0400-0001, nrbits becomes 64, stack...

CVE-2024-50262 bpf: Fix out-of-bounds write in trie_get_next_key()

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in triegetnextkey triegetnextkey allocates a node stack with size trie-maxprefixlen, while it writes trie-maxprefixlen + 1 nodes to the stack when it has full paths from the root to leaves. For exampl...

CVE-2024-50262 bpf: Fix out-of-bounds write in trie_get_next_key()

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in triegetnextkey triegetnextkey allocates a node stack with size trie-maxprefixlen, while it writes trie-maxprefixlen + 1 nodes to the stack when it has full paths from the root to leaves. For exampl...

CVE-2024-50262

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix out-of-bounds write in triegetnextkey triegetnextkey allocates a node stack with size trie-maxprefixlen, while it writes trie-maxprefixlen + 1 nodes to the stack when it has full paths from the root to leaves. For exampl...

CVE-2024-50254 bpf: Free dynamically allocated bits in bpf_iter_bits_destroy()

In the Linux kernel, the following vulnerability has been resolved: bpf: Free dynamically allocated bits in bpfiterbitsdestroy bpfiterbitsdestroy uses "kit-nrbits kmemleakalloc+0x4b/0x80 kmallocnodenoprof+0x480/0x5c0 alloc.isra.0+0x89/0xb0 allocbulk+0x2af/0x720 prefillmemcache+0x7f/0xb0...