bpf: Fix a kernel verifier crash in stacksafe()

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USN-7021-2 linux-ibm-5.15, linux-oracle-5.15, linux-xilinx-zynqmp vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - GPU drivers; - BTRFS file system; - F2FS file system; - GFS2 file system; - BPF subsystem; - Netfilter; - RxRPC...

SUSE CVE-2024-46783

In the Linux kernel, the following vulnerability has been resolved: tcpbpf: fix return value of tcpbpfsendmsg When we cork messages in psock-cork, the last message triggers the flushing will result in sending a skmsg larger than the current message size. In this case, in tcpbpfsendverdict, 'copie...

AZL-68297 CVE-2024-46754 affecting package kernel 5.15.200.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Remove tstrun from lwtseg6localprogops. The syzbot reported that the lwtseg6 related BPF ops can be invoked via bpftestrun without without entering inputactionendbpf first. Martin KaFai Lau said that self test for...

DEBIAN-CVE-2024-46754

In the Linux kernel, the following vulnerability has been resolved: bpf: Remove tstrun from lwtseg6localprogops. The syzbot reported that the lwtseg6 related BPF ops can be invoked via bpftestrun without without entering inputactionendbpf first. Martin KaFai Lau said that self test for...

The vulnerability of the test_bpf function in the powerpc64 kernel of the Linux operating system allows a hacker to cause a service failure.

The vulnerability of the testbpf function in the powerpc64 component of the Linux operating system is related to the limitation on the use of dbrx for processors compatible with ISA version 2.06. Exploiting this vulnerability can allow a hacker to cause a service failure...

PT-2024-33708

Name of the Vulnerable Software and Affected Versions: Linux kernel versions prior to 6.6.58 Description: A vulnerability has been found in the Linux kernel where specific helpers with ARG PTR TO LONG,INT as arguments can write into read-only BPF maps from the BPF program side. This occurs becaus...

UBUNTU-CVE-2024-45020

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a kernel verifier crash in stacksafe Daniel Hodges reported a kernel verifier crash when playing with sched-ext. Further investigation shows that the crash is due to invalid memory access in stacksafe. More specifically,...

bpf: Avoid splat in pskb_pull_reason

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bpf: Fix null pointer dereference in resolve_prog_type() for BPF_PROG_TYPE_EXT

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DEBIAN-CVE-2024-44996

In the Linux kernel, the following vulnerability has been resolved: vsock: fix recursive -recvmsg calls After a vsock socket has been added to a BPF sockmap, its prot-recvmsg has been replaced with vsockbpfrecvmsg. Thus the following recursiion could happen: vsockbpfrecvmsg - vsockrecvmsg -...

kernel: bpf: Add BPF_PROG_TYPE_CGROUP_SKB attach type enforcement in BPF_LINK_CREATE

In the Linux kernel, the following vulnerability has been resolved: bpf: Add BPFPROGTYPECGROUPSKB attach type enforcement in BPFLINKCREATE bpfprogattach uses attachtypetoprogtype to enforce proper attach type for BPFPROGTYPECGROUPSKB. linkcreate uses bpfprogget and relies on...

kernel: bpf, sockmap: Prevent lock inversion deadlock in map delete elem

CVE-2024-35895 addresses a vulnerability in the Linux kernel's Berkeley Packet Filter BPF subsystem, specifically within the sockmap feature. The issue arises when BPF tracing programs, which can execute in various interrupt contexts, attempt to delete elements from sockmap or sockhash maps. This...

The vulnerability of the bpf component in the Linux operating system’s kernel allows a hacker to trigger a service failure.

The vulnerability of the bpf component in the Linux operating system’s kernel is related to a failure in bpfspinlock, when it is set as the value of bpftimer. This occurs because the bpfmapupdateelem call reassigns another timer object. Exploiting this vulnerability can allow an attacker to trigg...

UBUNTU-CVE-2024-43910

In the Linux kernel, the following vulnerability has been resolved: bpf: add missing checkfuncargregoff to prevent out-of-bounds memory accesses Currently, it's possible to pass in a modified CONSTPTRTODYNPTR to a global function as an argument. The adverse effects of this is that BPF helpers can...

DEBIAN-CVE-2022-48929

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix crash due to out of bounds access into reg2btfids. When commit e6ac2450d6de "bpf: Support bpf program calling kernel function" added kfunc support, it defined reg2btfids as a cheap way to translate the verifier reg type ...

SUSE CVE-2024-42281

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix a segment issue when downgrading gsosize Linearize the skb when downgrading gsosize because it may trigger a BUGON later when the skb is segmented as described in 1,2...

SUSE CVE-2024-43837

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix null pointer dereference in resolveprogtype for BPFPROGTYPEEXT When loading a EXT program without specifying attr-attachprogfd, the prog-aux-dstprog will be null. At this time, calling resolveprogtype anywhere will resul...

SUSE CVE-2024-43843

In the Linux kernel, the following vulnerability has been resolved: riscv, bpf: Fix out-of-bounds issue when preparing trampoline image We get the size of the trampoline image during the dry run phase and allocate memory based on that size. The allocated image will then be populated with...

DEBIAN-CVE-2024-43840

In the Linux kernel, the following vulnerability has been resolved: bpf, arm64: Fix trampoline for BPFTRAMPFCALLORIG When BPFTRAMPFCALLORIG is set, the trampoline calls bpftrampenter and bpftrampexit functions, passing them the struct bpftrampimage im pointer as an argument in R0. The trampoline...