CVE-2024-50161

The CVE-2024-50161 issue affects the Linux kernel BPF interpreter (btf.c). It arises from unvalidated array indexing in btf_repeat_fields() when repeating nested struct BTF fields, potentially causing UBSAN out-of-bounds, and was reported to trigger a service denial. The connected BDU note states...

CVE-2024-50161 bpf: Check the remaining info_cnt before repeating btf fields

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the remaining infocnt before repeating btf fields When trying to repeat the btf fields for array of nested struct, it doesn't check the remaining infocnt. The following splat will be reported when the value of ret nele...

CVE-2024-50161 bpf: Check the remaining info_cnt before repeating btf fields

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the remaining infocnt before repeating btf fields When trying to repeat the btf fields for array of nested struct, it doesn't check the remaining infocnt. The following splat will be reported when the value of ret nele...

CVE-2024-50154

The CVE-2024-50154 vulnerability is in the Linux kernel. Root cause: a use-after-free can occur in reqsk_timer_handler() when a race around timer_pending() in reqsk_queue_unlink() allows a timer to fire after the socket is closed. The fix prevents del_timer_sync() from being missed by removing ti...

CVE-2024-50154 tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink().

In the Linux kernel, the following vulnerability has been resolved: tcp/dccp: Don't use timerpending in reqskqueueunlink. Martin KaFai Lau reported use-after-free 0 in reqsktimerhandler. """ We are seeing a use-after-free from a bpf prog attached to tracetcpretransmitsynack. The program passes th...

CVE-2024-50154 tcp/dccp: Don't use timer_pending() in reqsk_queue_unlink().

In the Linux kernel, the following vulnerability has been resolved: tcp/dccp: Don't use timerpending in reqskqueueunlink. Martin KaFai Lau reported use-after-free 0 in reqsktimerhandler. """ We are seeing a use-after-free from a bpf prog attached to tracetcpretransmitsynack. The program passes th...

PT-2024-33994

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.6.61 Description: The issue is related to the Linux kernel's BPF Berkeley Packet Filter functionality, specifically with the devmap redirect feature. When a BPF program is executed after a redirect via BPF MAP...

CVE-2024-50162: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: devmap: provide rxq after redirect rxq contains a pointer to the device from where the redirect happened. Currently, the BPF program that was executed after a redirect via BPFMAPTYPEDEVMAP does not have it set. This is...

PT-2024-9662

Name of the Vulnerable Software and Affected Versions Suricata versions prior to 7.0.8 Description The issue is related to a buffer overflow in the BPF filter of the Suricata system, which can be exploited to cause a denial of service. A large BPF filter file provided to Suricata at startup can...

CVE-2024-50164: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix overloading of MEMUNINIT's meaning Lonial reported an issue in the BPF verifier where checkmemsizereg has the following code: if !tnumisconstreg-varoff / For unprivileged variable accesses, disable raw mode so that the...

PT-2024-33995

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.6.61 Description: The issue arises from the shared use of the bpf redirect info struct between the SKB and XDP redirect paths in the Linux kernel, where the two paths utilize the same numeric flag values in th...

CVE-2024-50165: Missing Release of Memory after Effective Lifetime

In the Linux kernel, the following vulnerability has been resolved: bpf: Preserve param-string when parsing mount options In bpfparseparam, keep the value of param-string intact so it can be freed later. Otherwise, the kmalloc area pointed to by param-string will be leaked as shown below:...

CVE-2024-50161: Improper Validation of Array Index

In the Linux kernel, the following vulnerability has been resolved: bpf: Check the remaining infocnt before repeating btf fields When trying to repeat the btf fields for array of nested struct, it doesn't check the remaining infocnt. The following splat will be reported when the value of ret nele...

SUSE CVE-2023-52920

In the Linux kernel, the following vulnerability has been resolved: bpf: support non-r10 register spill/fill to/from stack in precision tracking Use instruction jump history to record instructions that performed register spill/fill to/from stack, regardless if this was done through read-only r10...

SUSE CVE-2024-50094

In the Linux kernel, the following vulnerability has been resolved: sfc: Don't invoke xdpdoflush from netpoll. Yury reported a crash in the sfc driver originated from netpollsendudp. The netconsole sends a message and then netpoll invokes the driver's NAPI function with a budget of zero. It is...

SUSE CVE-2024-50123

In the Linux kernel, the following vulnerability has been resolved: bpf: Add the missing BPFLINKTYPE invocation for sockmap There is an out-of-bounds read in bpflinkshowfdinfo for the sockmap link fd. Fix it by adding the missing BPFLINKTYPE invocation for sockmap link Also add comments for...

SUSE CVE-2024-50130

In the Linux kernel, the following vulnerability has been resolved: netfilter: bpf: must hold reference on net namespace BUG: KASAN: slab-use-after-free in nfunregisternethook+0x640/0x6b0 Read of size 8 at addr ffff8880106fe400 by task repro/72= bpfnflinkrelease+0xda/0x1e0 bpflinkfree+0x139/0x2d0...

SUSE CVE-2024-50138

In the Linux kernel, the following vulnerability has been resolved: bpf: Use rawspinlockt in ringbuf The function bpfringbufreserve is invoked from a tracepoint, which disables preemption. Using spinlockt in this context can lead to a "sleep in atomic" warning in the RT variant. This issue is...

Linux bpf_uprobe_multi_link_attach Heap Buffer Overflow DoS

The vulnerability of the bpfuprobemultilinkattach function in the kernel/trace/bpfTrace.c module of the Linux operating system is related to the reutilization of previously freed memory. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and...

DEBIAN-CVE-2024-50138

In the Linux kernel, the following vulnerability has been resolved: bpf: Use rawspinlockt in ringbuf The function bpfringbufreserve is invoked from a tracepoint, which disables preemption. Using spinlockt in this context can lead to a "sleep in atomic" warning in the RT variant. This issue is...