CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2026-23391 – netfilter: xt_CT: drop pending enqueued packets on template removal
https://notcve.org/view.php?id=CVE-2026-23391
25 Mar 2026 — In the Linux kernel, the following vulnerability has been resolved: netfilter: xt_CT: drop pending enqueued packets on template removal Templates refer to objects that can go away while packets are sitting in nfqueue refer to: - helper, this can be an issue on module removal. - timeout policy, nfnetlink_cttimeout might remove it. The use of templates with zone and event cache filter are safe, since this just copies values. Flush these enqueued packets in case the template rule gets removed. • https://git.kernel.org/stable/c/24de58f465165298aaa8f286b2592f0163706cfe •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2026-23388 – Squashfs: check metadata block offset is within range
https://notcve.org/view.php?id=CVE-2026-23388
25 Mar 2026 — In the Linux kernel, the following vulnerability has been resolved: Squashfs: check metadata block offset is within range Syzkaller reports a "general protection fault in squashfs_copy_data" This is ultimately caused by a corrupted index look-up table, which produces a negative metadata block offset. This is subsequently passed to squashfs_copy_data (via squashfs_read_metadata) where the negative offset causes an out of bounds access. The fix is to check that the offset is within range in squashfs_read_meta... • https://git.kernel.org/stable/c/f400e12656ab518be107febfe2315fb1eab5a342 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2026-23382 – HID: Add HID_CLAIMED_INPUT guards in raw_event callbacks missing them
https://notcve.org/view.php?id=CVE-2026-23382
25 Mar 2026 — In the Linux kernel, the following vulnerability has been resolved: HID: Add HID_CLAIMED_INPUT guards in raw_event callbacks missing them In commit 2ff5baa9b527 ("HID: appleir: Fix potential NULL dereference at raw event handle"), we handle the fact that raw event callbacks can happen even for a HID device that has not been "claimed" causing a crash if a broken device were attempted to be connected to the system. Fix up the remaining in-tree HID drivers that forgot to add this same check to resolve the same... • https://git.kernel.org/stable/c/d0742abaa1c396a26bb3d3ce2732988cd3faa020 •
CVSS: -EPSS: 0%CPEs: 2EXPL: 0CVE-2026-23374 – blktrace: fix __this_cpu_read/write in preemptible context
https://notcve.org/view.php?id=CVE-2026-23374
25 Mar 2026 — In the Linux kernel, the following vulnerability has been resolved: blktrace: fix __this_cpu_read/write in preemptible context tracing_record_cmdline() internally uses __this_cpu_read() and __this_cpu_write() on the per-CPU variable trace_cmdline_save, and trace_save_cmdline() explicitly asserts preemption is disabled via lockdep_assert_preemption_disabled(). These operations are only safe when preemption is off, as they were designed to be called from the scheduler context (probe_wakeup_sched_switch() / pr... • https://git.kernel.org/stable/c/7ffbd48d5cab22bcd1120eb2349db1319e2d827a •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2026-23372 – nfc: rawsock: cancel tx_work before socket teardown
https://notcve.org/view.php?id=CVE-2026-23372
25 Mar 2026 — In the Linux kernel, the following vulnerability has been resolved: nfc: rawsock: cancel tx_work before socket teardown In rawsock_release(), cancel any pending tx_work and purge the write queue before orphaning the socket. rawsock_tx_work runs on the system workqueue and calls nfc_data_exchange which dereferences the NCI device. Without synchronization, tx_work can race with socket and device teardown when a process is killed (e.g. by SIGKILL), leading to use-after-free or leaked references. Set SEND_SHUTD... • https://git.kernel.org/stable/c/23b7869c0fd08d73c9f83a2db88a13312d6198bb •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2026-23367 – wifi: radiotap: reject radiotap with unknown bits
https://notcve.org/view.php?id=CVE-2026-23367
25 Mar 2026 — In the Linux kernel, the following vulnerability has been resolved: wifi: radiotap: reject radiotap with unknown bits The radiotap parser is currently only used with the radiotap namespace (not with vendor namespaces), but if the undefined field 18 is used, the alignment/size is unknown as well. In this case, iterator->_next_ns_data isn't initialized (it's only set for skipping vendor namespaces), and syzbot points out that we later compare against this uninitialized value. Fix this by moving the rejection ... • https://git.kernel.org/stable/c/33e5a2f776e331dc8a4379b6efb660d38f182d96 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2026-23365 – net: usb: kalmia: validate USB endpoints
https://notcve.org/view.php?id=CVE-2026-23365
25 Mar 2026 — In the Linux kernel, the following vulnerability has been resolved: net: usb: kalmia: validate USB endpoints The kalmia driver should validate that the device it is probing has the proper number and types of USB endpoints it is expecting before it binds to it. If a malicious device were to not have the same urbs the driver will crash later on when it blindly accesses these endpoints. • https://git.kernel.org/stable/c/d40261236e8e278cb1936cb5e934262971692b10 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2026-23357 – can: mcp251x: fix deadlock in error path of mcp251x_open
https://notcve.org/view.php?id=CVE-2026-23357
25 Mar 2026 — In the Linux kernel, the following vulnerability has been resolved: can: mcp251x: fix deadlock in error path of mcp251x_open The mcp251x_open() function call free_irq() in its error path with the mpc_lock mutex held. But if an interrupt already occurred the interrupt handler will be waiting for the mpc_lock and free_irq() will deadlock waiting for the handler to finish. This issue is similar to the one fixed in commit 7dd9c26bd6cf ("can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open") but... • https://git.kernel.org/stable/c/bf66f3736a945dd4e92d86427276c6eeab0a6c1d •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2026-23356 – drbd: fix "LOGIC BUG" in drbd_al_begin_io_nonblock()
https://notcve.org/view.php?id=CVE-2026-23356
25 Mar 2026 — In the Linux kernel, the following vulnerability has been resolved: drbd: fix "LOGIC BUG" in drbd_al_begin_io_nonblock() Even though we check that we "should" be able to do lc_get_cumulative() while holding the device->al_lock spinlock, it may still fail, if some other code path decided to do lc_try_lock() with bad timing. If that happened, we logged "LOGIC BUG for enr=...", but still did not return an error. The rest of the code now assumed that this request has references for the relevant activity log ext... • https://git.kernel.org/stable/c/08a1ddab6df7d3c7b6341774cb1cf4b21b96a214 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2026-23352 – x86/efi: defer freeing of boot services memory
https://notcve.org/view.php?id=CVE-2026-23352
25 Mar 2026 — In the Linux kernel, the following vulnerability has been resolved: x86/efi: defer freeing of boot services memory efi_free_boot_services() frees memory occupied by EFI_BOOT_SERVICES_CODE and EFI_BOOT_SERVICES_DATA using memblock_free_late(). There are two issue with that: memblock_free_late() should be used for memory allocated with memblock_alloc() while the memory reserved with memblock_reserve() should be freed with free_reserved_area(). More acutely, with CONFIG_DEFERRED_STRUCT_PAGE_INIT=y efi_free_boo... • https://git.kernel.org/stable/c/0aed459e8487eb6ebdb4efe8cefe1eafbc704b30 •