CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-45020 – bpf: Fix a kernel verifier crash in stacksafe()
https://notcve.org/view.php?id=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, it is the following code: if (exact != NOT_EXACT && old->stack[spi].slot_type[i % BPF_REG_SIZE] != cur->stack[spi].slot_type[i % BPF_REG_SIZE]) return false; The 'i' iterates old->allocated_stack. If cur->allocated_stack < old->allocated_stack the out-of-bound access will happen. To fix the issue add 'i >= cur->allocated_stack' check such that if the condition is true, stacksafe() should fail. Otherwise, cur->stack[spi].slot_type[i % BPF_REG_SIZE] memory access is legal. • https://git.kernel.org/stable/c/ab470fefce2837e66b771c60858118d50bb5bb10 https://git.kernel.org/stable/c/2793a8b015f7f1caadb9bce9c63dc659f7522676 https://git.kernel.org/stable/c/7cad3174cc79519bf5f6c4441780264416822c08 https://git.kernel.org/stable/c/6e3987ac310c74bb4dd6a2fa8e46702fe505fb2b https://git.kernel.org/stable/c/bed2eb964c70b780fb55925892a74f26cb590b25 •
CVSS: -EPSS: 0%CPEs: 4EXPL: 0CVE-2024-45019 – net/mlx5e: Take state lock during tx timeout reporter
https://notcve.org/view.php?id=CVE-2024-45019
In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Take state lock during tx timeout reporter mlx5e_safe_reopen_channels() requires the state lock taken. The referenced changed in the Fixes tag removed the lock to fix another issue. This patch adds it back but at a later point (when calling mlx5e_safe_reopen_channels()) to avoid the deadlock referenced in the Fixes tag. • https://git.kernel.org/stable/c/514232495aa523641febaa58b687fe6df1cd0b73 https://git.kernel.org/stable/c/8ce3d969348a7c7fa3469588eb1319f9f3cc0eaa https://git.kernel.org/stable/c/eab0da38912ebdad922ed0388209f7eb0a5163cd https://git.kernel.org/stable/c/03d3734bd692affe4d0e9c9d638f491aaf37411b https://git.kernel.org/stable/c/b3b9a87adee97854bcd71057901d46943076267e https://git.kernel.org/stable/c/8e57e66ecbdd2fddc9fbf3e984b1c523b70e9809 https://git.kernel.org/stable/c/e6b5afd30b99b43682a7764e1a74a42fe4d5f4b3 •
CVSS: 5.5EPSS: 0%CPEs: 6EXPL: 0CVE-2024-45018 – netfilter: flowtable: initialise extack before use
https://notcve.org/view.php?id=CVE-2024-45018
In the Linux kernel, the following vulnerability has been resolved: netfilter: flowtable: initialise extack before use Fix missing initialisation of extack in flow offload. • https://git.kernel.org/stable/c/c29f74e0df7a02b8303bcdce93a7c0132d62577a https://git.kernel.org/stable/c/e5ceff2196dc633c995afb080f6f44a72cff6e1d https://git.kernel.org/stable/c/356beb911b63a8cff34cb57f755c2a2d2ee9dec7 https://git.kernel.org/stable/c/7eafeec6be68ebd6140a830ce9ae68ad5b67ec78 https://git.kernel.org/stable/c/c7b760499f7791352b49b11667ed04b23d7f5b0f https://git.kernel.org/stable/c/119be227bc04f5035efa64cb823b8a5ca5e2d1c1 https://git.kernel.org/stable/c/e9767137308daf906496613fd879808a07f006a2 https://access.redhat.com/security/cve/CVE-2024-45018 • CWE-457: Use of Uninitialized Variable •
CVSS: -EPSS: 0%CPEs: 12EXPL: 0CVE-2024-45016 – netem: fix return value if duplicate enqueue fails
https://notcve.org/view.php?id=CVE-2024-45016
In the Linux kernel, the following vulnerability has been resolved: netem: fix return value if duplicate enqueue fails There is a bug in netem_enqueue() introduced by commit 5845f706388a ("net: netem: fix skb length BUG_ON in __skb_to_sgvec") that can lead to a use-after-free. This commit made netem_enqueue() always return NET_XMIT_SUCCESS when a packet is duplicated, which can cause the parent qdisc's q.qlen to be mistakenly incremented. When this happens qlen_notify() may be skipped on the parent during destruction, leaving a dangling pointer for some classful qdiscs like DRR. There are two ways for the bug happen: - If the duplicated packet is dropped by rootq->enqueue() and then the original packet is also dropped. - If rootq->enqueue() sends the duplicated packet to a different qdisc and the original packet is dropped. In both cases NET_XMIT_SUCCESS is returned even though no packets are enqueued at the netem qdisc. The fix is to defer the enqueue of the duplicate packet until after the original packet has been guaranteed to return NET_XMIT_SUCCESS. • https://git.kernel.org/stable/c/5845f706388a4cde0f6b80f9e5d33527e942b7d9 https://git.kernel.org/stable/c/a550a01b8af856f2684b0f79d552f5119eb5006c https://git.kernel.org/stable/c/009510a90e230bb495f3fe25c7db956679263b07 https://git.kernel.org/stable/c/4de7d30668cb8b06330992e1cd336f91700a2ce7 https://git.kernel.org/stable/c/d1dd2e15c85e890a1cc9bde5ba07ae63331e5c73 https://git.kernel.org/stable/c/0148fe458b5705e2fea7cb88294fed7e36066ca2 https://git.kernel.org/stable/c/759e3e8c4a6a6b4e52ebc4547123a457f0ce90d4 https://git.kernel.org/stable/c/c414000da1c2ea1ba9a5e5bb1a4ba774e •
CVSS: -EPSS: 0%CPEs: 3EXPL: 0CVE-2024-45015 – drm/msm/dpu: move dpu_encoder's connector assignment to atomic_enable()
https://notcve.org/view.php?id=CVE-2024-45015
In the Linux kernel, the following vulnerability has been resolved: drm/msm/dpu: move dpu_encoder's connector assignment to atomic_enable() For cases where the crtc's connectors_changed was set without enable/active getting toggled , there is an atomic_enable() call followed by an atomic_disable() but without an atomic_mode_set(). This results in a NULL ptr access for the dpu_encoder_get_drm_fmt() call in the atomic_enable() as the dpu_encoder's connector was cleared in the atomic_disable() but not re-assigned as there was no atomic_mode_set() call. Fix the NULL ptr access by moving the assignment for atomic_enable() and also use drm_atomic_get_new_connector_for_encoder() to get the connector from the atomic_state. Patchwork: https://patchwork.freedesktop.org/patch/606729/ • https://git.kernel.org/stable/c/25fdd5933e4c0f5fe2ea5cd59994f8ac5fbe90ef https://git.kernel.org/stable/c/3fb61718bcbe309279205d1cc275a6435611dc77 https://git.kernel.org/stable/c/3bacf814b6a61cc683c68465f175ebd938f09c52 https://git.kernel.org/stable/c/aedf02e46eb549dac8db4821a6b9f0c6bf6e3990 •