CVE-2026-23146 Bluetooth: hci_uart: fix null-ptr-deref in hci_uart_write_work

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hciuart: fix null-ptr-deref in hciuartwritework hciuartsetproto sets HCIUARTPROTOINIT before calling hciuartregisterdev, which calls proto-open to initialize hu-priv. However, if a TTY write wakeup occurs during this...

AZL-77751 CVE-2026-23125 affecting package kernel for versions less than 6.6.126.1-1

In the Linux kernel, the following vulnerability has been resolved: sctp: move SCTPCMDASSOCSHKEY right after SCTPCMDPEERINIT A null-ptr-deref was reported in the SCTP transmit path when SCTP-AUTH key initialization fails: ================================================================== KASAN:...

UBUNTU-CVE-2026-23125

In the Linux kernel, the following vulnerability has been resolved: sctp: move SCTPCMDASSOCSHKEY right after SCTPCMDPEERINIT A null-ptr-deref was reported in the SCTP transmit path when SCTP-AUTH key initialization fails: ================================================================== KASAN:...

CVE-2026-23125 sctp: move SCTP_CMD_ASSOC_SHKEY right after SCTP_CMD_PEER_INIT

In the Linux kernel, the following vulnerability has been resolved: sctp: move SCTPCMDASSOCSHKEY right after SCTPCMDPEERINIT A null-ptr-deref was reported in the SCTP transmit path when SCTP-AUTH key initialization fails: ================================================================== KASAN:...

CVE-2026-23196: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: HID: Intel-thc-hid: Intel-thc: Add safety check for reading DMA buffer Add DMA buffer readiness check before reading DMA buffer to avoid unexpected NULL pointer accessing...

CVE-2026-23173: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: TC, delete flows only for existing peers When deleting TC steering flows, iterate only over actual devcom peers instead of assuming all possible ports exist. This avoids touching non-existent peers and ensures cleanup ...

CVE-2026-23189: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: ceph: fix NULL pointer dereference in cephmdsauthmatch The CephFS kernel client has regression starting from 6.18-rc1. We have issue in cephmdsauthmatch if fsname == NULL: const char fsname = mdsc-fsc-mountoptions-mdsnamespace;...

CVE-2026-23201: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: ceph: fix oops due to invalid pointer for kfree in parselongname This fixes a kernel oops when reading ceph snapshot directories .snap, for example by simply running ls /mnt/myceph/.snap. The variable str is guarded by freekfree,...

CVE-2026-23210: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: ice: Fix PTP NULL pointer dereference during VSI rebuild Fix race condition where PTP periodic work runs while VSI is being rebuilt, accessing NULL vsi-rxrings. The sequence was: 1. iceptpprepareforreset cancels PTP work 2...

CVE-2026-23207: Concurrent Execution using Shared Resource with Improper Synchronization

In the Linux kernel, the following vulnerability has been resolved: spi: tegra210-quad: Protect currxfer check in IRQ handler Now that all other accesses to currxfer are done under the lock, protect the currxfer NULL check in tegraqspiisrthread with the spinlock. Without this protection, the...

CVE-2026-23200: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: ipv6: Fix ECMP sibling count mismatch when clearing RTFADDRCONF syzbot reported a kernel BUG in fib6addrt2node when adding an IPv6 route. 0 Commit f72514b3c569 "ipv6: clear RA flags when adding a static route" introduced logic to...

CVE-2026-23202: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: spi: tegra210-quad: Protect currxfer in tegraqspicombinedseqxfer The currxfer field is read by the IRQ handler without holding the lock to check if a transfer is in progress. When clearing currxfer in the combined sequence transf...

CVE-2026-23198: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: KVM: Don't clobber irqfd routing type when deassigning irqfd When deassigning a KVMIRQFD, don't clobber the irqfd's copy of the IRQ's routing entry as doing so breaks kvmarchirqbypassdelproducer on x86 and arm64, which explicitly...

CVE-2026-23197: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: i2c: imx: preserve error state in block data length handler When a block read returns an invalid length, zero or I2CSMBUSBLOCKMAX, the length handler sets the state to IMXI2CSTATEFAILED. However, i2cimxmasterisr unconditionally...

CVE-2026-23181: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: btrfs: sync read disk super and set block size When the user performs a btrfs mount, the block device is not set correctly. The user sets the block size of the block device to 0x4000 by executing the BLKBSZSET command. Since the...

CVE-2026-23166: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: ice: Fix NULL pointer dereference in icevsisetnapiqueues Add NULL pointer checks in icevsisetnapiqueues to prevent crashes during resume from suspend when ringsqidx-qvector is NULL. Tested adaptor: 60:00.0 Ethernet controller 020...

CVE-2026-23159: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: perf: sched: Fix perf crash with new isusertask helper In order to do a user space stacktrace the current task needs to be a user task that has executed in user space. It use to be possible to test if a task is a user task or not...

CVE-2026-23148: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: nvmet: fix race in nvmetbiodone leading to NULL pointer dereference There is a race condition in nvmetbiodone that can cause a NULL pointer dereference in blkcgroupbiostart: 1. nvmetbiodone is called when a bio completes 2...

CVE-2026-23125: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: sctp: move SCTPCMDASSOCSHKEY right after SCTPCMDPEERINIT A null-ptr-deref was reported in the SCTP transmit path when SCTP-AUTH key initialization fails: ================================================================== KASAN:...

CVE-2026-23117: NULL Pointer Dereference

In the Linux kernel, the following vulnerability has been resolved: ice: add missing icedeinithw in devlink reinit path devlink-reload results in iceinithw failed error, and then removing the ice driver causes a NULL pointer dereference. +0.102213 ice 0000:ca:00.0: iceinithw failed: -16...