Linux Kernel Security Vulnerabilities

The Linux kernel version 5.16 contains a security vulnerability. This vulnerability stems from the erofs LZMA decoder pool adjusting size during adjustment, failing to retain the old decoders after allocation. As a result, NULL values are passed to xzdecmicrolzmareset, potentially leading to null...

CVE-2026-98086: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ALSA: ump: do not touch legacyrmidi before it exists sndumpparseendpoint sets ump-parsed on every exit, including error, before the caller attaches the legacy rawmidi device. umphandleepnamemsg then treats parsed as "legacyrmidi ...

CVE-2026-97601

In the Linux kernel, the following vulnerability has been resolved: ieee802154: 6lowpan: fix NULL dereference in lowpannewlink TUNSETLINK allows a TUN device to change its link-layer type to ARPHRDIEEE802154 without initializing ieee802154ptr. lowpannewlink checks only the device type before...

CVE-2026-97947: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: x86/amdnode: Fix potential NULL pointer dereference amdsmnread/write are exported functions around amdsmnrw, so they are always available even if amdsmninit fails. In that case, 'amdroots' is NULL and amdsmnrw will access...

CVE-2026-98098: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: tipc: fix NULL deref in tipcnamednodeup on empty publication list User-space applications can bind a large number of service addresses to one or more sockets. Each binding of a local-scope service address inserts one entry...

CVE-2026-98037: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject untrusted allocated-object pointers When the final RCU read-side critical section ends, a local kptr is demoted to PTRUNTRUSTED but retains MEMALLOC. The pointer may be NULL or may refer to an object whose lifetime is...

PT-2026-98690

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A flaw exists in the mv88e6xxx get rxnfc function within the net: dsa: mv88e6xxx module. The function uses rxnfc-rule cnt as a write index when dumping the policy IDR, which overwrites t...

CVE-2026-98008: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net: macb: fix NULL pointer dereference on unbind with fixed-link When the device tree describes a fixed-link and has no "mdio" child node, macbmiiinit returns early without allocating the MDIO bus, leaving bp-miibus as NULL. Two...

CVE-2026-97537

In the Linux kernel, the following vulnerability has been resolved: scsi: qla2xxx: Fix queue teardown NULL dmafree and bitmap locking qla25xxfreereqque and qla25xxfreerspque have two pre-existing bugs exposed on the error path of qla25xxcreatereq,rspque: 1. When dmaalloccoherent fails during queu...

CVE-2026-98098

In the Linux kernel, the following vulnerability has been resolved: tipc: fix NULL deref in tipcnamednodeup on empty publication list User-space applications can bind a large number of service addresses to one or more sockets. Each binding of a local-scope service address inserts one entry...

CVE-2026-98059: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark schedprocesswait argument as nullable dowait passes wo-wopid to the schedprocesswait tracepoint. kernelwait4 leaves wopid NULL for wait4-1, and kernelwaitidprepare does likewise for waitidPALL. btfctxaccess currently...

CVE-2026-97593: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: iommu/s390: Fix NULL dereference in iovatophys with ZPCITABLETYPERFX When using a 5-level translation table via ZPCITABLETYPERFX getrsofromiova returns NULL when the region-first entry is invalid. Yet in getrtofromiova the...

CVE-2026-97601: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ieee802154: 6lowpan: fix NULL dereference in lowpannewlink TUNSETLINK allows a TUN device to change its link-layer type to ARPHRDIEEE802154 without initializing ieee802154ptr. lowpannewlink checks only the device type before...

CVE-2026-98037: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject untrusted allocated-object pointers When the final RCU read-side critical section ends, a local kptr is demoted to PTRUNTRUSTED but retains MEMALLOC. The pointer may be NULL or may refer to an object whose lifetime is...

CVE-2026-98059

In the Linux kernel, the following vulnerability has been resolved: bpf: Mark schedprocesswait argument as nullable dowait passes wo-wopid to the schedprocesswait tracepoint. kernelwait4 leaves wopid NULL for wait4-1, and kernelwaitidprepare does likewise for waitidPALL. btfctxaccess currently...

PT-2026-98533

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference occurs in the iova to phys function when using a 5-level translation table via ZPCI TABLE TYPE RFX. This happens because the get rto from iova function fails t...

PT-2026-98600

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description Memory corruption occurs in the tracing subsystem due to improper validation of the histogram stacktrace modifier. The parse field function sets the HIST FIELD FL STACKTRACE flag before...

PT-2026-98639

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the Bluetooth subsystem between hci conn del sysfs and concurrent child device unregistration, such as when bnep session calls unregister netdev. This occurs...

PT-2026-98706

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF subsystem where the reg not null function incorrectly determines if a register holds a non-NULL value by relying solely on its type. For pointer types that all...

PT-2026-98726

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A NULL pointer dereference exists in the btf var show function. This occurs because the function calls btf type id resolve unconditionally, which attempts to dereference btf-resolved ids...