UBUNTU-CVE-2024-50163

In the Linux kernel, the following vulnerability has been resolved: bpf: Make sure internal and UAPI bpfredirect flags don't overlap The bpfredirectinfo is shared between the SKB and XDP redirect paths, and the two paths use the same numeric flag values in the ri-flags field specifically,...

UBUNTU-CVE-2024-50154

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...

UBUNTU-CVE-2024-50162

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...

CVE-2024-50164 bpf: Fix overloading of MEM_UNINIT's meaning

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...

CVE-2024-50164

The CVE-2024-50164 entry covers a Linux kernel BPF verifier regression where MEM_UNINIT was overloaded to mean both “buffer need not be initialized” and “buffer will be written to.” This allowed a BPF program to write to read-only maps (e.g., .rodata) when the buffer size was not a fixed constant...

CVE-2024-50165 bpf: Preserve param->string when parsing mount options

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-2024-50165

CVE-2024-50165 concerns the Linux kernel BPF subsystem. The vulnerability arises in bpf_parse_param() where param->string was not preserved, risking a kmalloc leak if the string is later freed. The fix is to preserve the value of param->string so it can be freed correctly, preventing memory...

CVE-2024-50165 bpf: Preserve param->string when parsing mount options

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-2024-50164 bpf: Fix overloading of MEM_UNINIT's meaning

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...

CVE-2024-50164

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...

CVE-2024-50165

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-2024-50163 bpf: Make sure internal and UAPI bpf_redirect flags don't overlap

In the Linux kernel, the following vulnerability has been resolved: bpf: Make sure internal and UAPI bpfredirect flags don't overlap The bpfredirectinfo is shared between the SKB and XDP redirect paths, and the two paths use the same numeric flag values in the ri-flags field specifically,...

CVE-2024-50163 bpf: Make sure internal and UAPI bpf_redirect flags don't overlap

In the Linux kernel, the following vulnerability has been resolved: bpf: Make sure internal and UAPI bpfredirect flags don't overlap The bpfredirectinfo is shared between the SKB and XDP redirect paths, and the two paths use the same numeric flag values in the ri-flags field specifically,...

CVE-2024-50163

In the Linux kernel, the following vulnerability has been resolved: bpf: Make sure internal and UAPI bpfredirect flags don't overlap The bpfredirectinfo is shared between the SKB and XDP redirect paths, and the two paths use the same numeric flag values in the ri-flags field specifically,...

CVE-2024-50162 bpf: devmap: provide rxq after redirect

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...

CVE-2024-50162 bpf: devmap: provide rxq after redirect

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...

CVE-2024-50162 bpf: devmap: provide rxq after redirect

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...

CVE-2024-50162

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...

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

CVE-2024-50161 refers to a Linux kernel vulnerability in the BPF/C API: when repeating BTF fields for an array of nested structs, the code failed to validate the remaining info_cnt, causing a UBSAN array-index-out-of-bounds condition (index 11 out of range for btf_field_info[11]). Affected compon...