CVSS: -EPSS: %CPEs: 8EXPL: 0CVE-2025-21922 – ppp: Fix KMSAN uninit-value warning with bpf
https://notcve.org/view.php?id=CVE-2025-21922
01 Apr 2025 — In the Linux kernel, the following vulnerability has been resolved: ppp: Fix KMSAN uninit-value warning with bpf Syzbot caught an "KMSAN: uninit-value" warning [1], which is caused by the ppp driver not initializing a 2-byte header when using socket filter. The following code can generate a PPP filter BPF program: ''' struct bpf_program fp; pcap_t *handle; handle = pcap_open_dead(DLT_PPP_PPPD, 65535); pcap_compile(handle, &fp, "ip and outbound", 0, 0); bpf_dump(&fp, 1); ''' Its output is: ''' (000) ldh [2] ... • https://git.kernel.org/stable/c/1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 •
CVSS: -EPSS: %CPEs: 8EXPL: 0CVE-2025-21920 – vlan: enforce underlying device type
https://notcve.org/view.php?id=CVE-2025-21920
01 Apr 2025 — In the Linux kernel, the following vulnerability has been resolved: vlan: enforce underlying device type Currently, VLAN devices can be created on top of non-ethernet devices. Besides the fact that it doesn't make much sense, this also causes a bug which leaks the address of a kernel function to usermode. When creating a VLAN device, we initialize GARP (garp_init_applicant) and MRP (mrp_init_applicant) for the underlying device. As part of the initialization process, we add the multicast address of each app... • https://git.kernel.org/stable/c/22bedad3ce112d5ca1eaf043d4990fa2ed698c87 •
CVSS: -EPSS: %CPEs: 8EXPL: 0CVE-2025-21917 – usb: renesas_usbhs: Flush the notify_hotplug_work
https://notcve.org/view.php?id=CVE-2025-21917
01 Apr 2025 — In the Linux kernel, the following vulnerability has been resolved: usb: renesas_usbhs: Flush the notify_hotplug_work When performing continuous unbind/bind operations on the USB drivers available on the Renesas RZ/G2L SoC, a kernel crash with the message "Unable to handle kernel NULL pointer dereference at virtual address" may occur. This issue points to the usbhsc_notify_hotplug() function. Flush the delayed work to avoid its execution when driver resources are unavailable. • https://git.kernel.org/stable/c/bc57381e634782009b1cb2e86b18013699ada576 •
CVSS: -EPSS: %CPEs: 6EXPL: 0CVE-2025-21912 – gpio: rcar: Use raw_spinlock to protect register access
https://notcve.org/view.php?id=CVE-2025-21912
01 Apr 2025 — In the Linux kernel, the following vulnerability has been resolved: gpio: rcar: Use raw_spinlock to protect register access Use raw_spinlock in order to fix spurious messages about invalid context when spinlock debugging is enabled. The lock is only used to serialize register access. [ 4.239592] ============================= [ 4.239595] [ BUG: Invalid wait context ] [ 4.239599] 6.13.0-rc7-arm64-renesas-05496-gd088502a519f #35 Not tainted [ 4.239603] ----------------------------- [ 4.239606] kworker/u8:5/76 ... • https://git.kernel.org/stable/c/7c1f36f9c9aca507d317479a3d3388150ae40a87 •
CVSS: -EPSS: %CPEs: 8EXPL: 0CVE-2025-21910 – wifi: cfg80211: regulatory: improve invalid hints checking
https://notcve.org/view.php?id=CVE-2025-21910
01 Apr 2025 — In the Linux kernel, the following vulnerability has been resolved: wifi: cfg80211: regulatory: improve invalid hints checking Syzbot keeps reporting an issue [1] that occurs when erroneous symbols sent from userspace get through into user_alpha2[] via regulatory_hint_user() call. Such invalid regulatory hints should be rejected. While a sanity check from commit 47caf685a685 ("cfg80211: regulatory: reject invalid hints") looks to be enough to deter these very cases, there is a way to get around it due to 2 ... • https://git.kernel.org/stable/c/09d989d179d0c679043556dda77c51b41a2dae7e •
CVSS: -EPSS: %CPEs: 8EXPL: 0CVE-2025-21909 – wifi: nl80211: reject cooked mode if it is set along with other flags
https://notcve.org/view.php?id=CVE-2025-21909
01 Apr 2025 — In the Linux kernel, the following vulnerability has been resolved: wifi: nl80211: reject cooked mode if it is set along with other flags It is possible to set both MONITOR_FLAG_COOK_FRAMES and MONITOR_FLAG_ACTIVE flags simultaneously on the same monitor interface from the userspace. This causes a sub-interface to be created with no IEEE80211_SDATA_IN_DRIVER bit set because the monitor interface is in the cooked state and it takes precedence over all other states. When the interface is then being deleted th... • https://git.kernel.org/stable/c/66f7ac50ed7cc5c19a62bc97e8f6e7891004a03a •
CVSS: -EPSS: %CPEs: 8EXPL: 0CVE-2025-21904 – caif_virtio: fix wrong pointer check in cfv_probe()
https://notcve.org/view.php?id=CVE-2025-21904
01 Apr 2025 — In the Linux kernel, the following vulnerability has been resolved: caif_virtio: fix wrong pointer check in cfv_probe() del_vqs() frees virtqueues, therefore cfv->vq_tx pointer should be checked for NULL before calling it, not cfv->vdev. Also the current implementation is redundant because the pointer cfv->vdev is dereferenced before it is checked for NULL. Fix this by checking cfv->vq_tx for NULL instead of cfv->vdev before calling del_vqs(). • https://git.kernel.org/stable/c/0d2e1a2926b1839a4b74519e660739b2566c9386 •
CVSS: -EPSS: %CPEs: 13EXPL: 0CVE-2025-21898 – ftrace: Avoid potential division by zero in function_stat_show()
https://notcve.org/view.php?id=CVE-2025-21898
01 Apr 2025 — In the Linux kernel, the following vulnerability has been resolved: ftrace: Avoid potential division by zero in function_stat_show() Check whether denominator expression x * (x - 1) * 1000 mod {2^32, 2^64} produce zero and skip stddev computation in that case. For now don't care about rec->counter * rec->counter overflow because rec->time * rec->time overflow will likely happen earlier. • https://git.kernel.org/stable/c/f0629ee3922f10112584b1898491fecc74d98b3b •
CVSS: 7.1EPSS: 0%CPEs: 7EXPL: 0CVE-2023-53032 – netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.
https://notcve.org/view.php?id=CVE-2023-53032
27 Mar 2025 — In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. When first_ip is 0, last_ip is 0xFFFFFFFF, and netmask is 31, the value of an arithmetic expression 2 << (netmask - mask_bits - 1) is subject to overflow due to a failure casting operands to a larger data type before performing the arithmetic. Note that it's harmless since the value will be checked at the next step. Found by InfoTeCS on behalf of Linux Verificat... • https://git.kernel.org/stable/c/b9fed748185a96b7cfe74afac4bd228e8af16f01 •
CVSS: 6.3EPSS: 0%CPEs: 5EXPL: 0CVE-2023-53031 – powerpc/imc-pmu: Fix use of mutex in IRQs disabled section
https://notcve.org/view.php?id=CVE-2023-53031
27 Mar 2025 — In the Linux kernel, the following vulnerability has been resolved: powerpc/imc-pmu: Fix use of mutex in IRQs disabled section Current imc-pmu code triggers a WARNING with CONFIG_DEBUG_ATOMIC_SLEEP and CONFIG_PROVE_LOCKING enabled, while running a thread_imc event. Command to trigger the warning: # perf stat -e thread_imc/CPM_CS_FROM_L4_MEM_X_DPTEG/ sleep 5 Performance counter stats for 'sleep 5': 0 thread_imc/CPM_CS_FROM_L4_MEM_X_DPTEG/ 5.002117947 seconds time elapsed 0.000131000 seconds user 0.001063000 ... • https://git.kernel.org/stable/c/8f95faaac56c18b32d0e23ace55417a440abdb7e •