Linux kernel security vulnerabilities

A security vulnerability exists in Linux kernel version 6.15. It stems from the adjustidledly function within the drm/xe drivers, which fails to handle division by zero when timestampbase is set to 0. Additionally, there are a u32 overflow and a loop that decrements maxcnt during the...

CLSA-2024-1728935304 kernel: Fix of 12 CVEs

xfs: don't walk off the end of a directory data block CVE-2024-41013 - net/sched: clsu32: fix netns refcount changes in u32change CVE-2022-29581 - net/packet: fix slab-out-of-bounds access in packetrecvmsg CVE-2022-20368 - openvswitch: fix OOB access in reservesfasize CVE-2022-2639 - net: sched:...

CVE-2026-93182

A flaw was found in the Linux kernel. A local user can trigger a divide-by-zero error in the scheduler's fair scheduling class sched/fair due to an unsigned 32-bit integer u32 overflow in the updatetgcfsrunnable function. This overflow corrupts internal scheduling data, leading to an invalid...

PT-2026-116848

In the Linux kernel, the following vulnerability has been resolved: net/sched: cls u32: fix manual hash table handle IDR aliasing A u32 hash table created with an explicit handle 'tc filter add ... handle 801: u32 divisor N' keys its IDR entry on the raw handle, while the destroy paths free it...

Astra Linux – Vulnerability found in Linux 6.1, Linux 5.10, and Linux 5.15

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsu32: use skbheaderpointercareful skbheaderpointer does not fully validate negative @offset values. Use skbheaderpointercareful instead. GangMin Kim provided a report and a reproducible example of the issue in...

Astra Linux – Vulnerability in Linux 6.1

In the Linux kernel, the following vulnerabilities have been resolved: svcrdma: Fixed offset arithmetic in readchunkrange The svcrdmareadchunkrange function iterates through the segment list of a Read chunk to create a sub-range starting at the byte offset and spanning length bytes for a...

Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1, and Linux 5.15

In the Linux kernel, the following vulnerabilities have been resolved: net/sched: schhfsc: Fixed an issue where a division by zero could occur in rtscmin. The m2sm function converts a u32 slope into a u64 scaled value. For large inputs e.g., when m1=4000000000, the result can reach 2^32. The...

Astra Linux – vulnerability in linux-5.10, linux-6.1, linux-5.15

In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix u32 overflow in pushbuf reloc bounds check nouveaugempushbufrelocapply validates each relocation with if r-relocbooffset + 4 nvbo-bo.base.size However, relocbooffset is a u32 type from uapi/drm/nouveaudrm.h, and...

CVE-2026-92154

F´ F Prime is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Svc::FileUplink handleDataPacket offset and size validation is vulnerable because the component checks byteOffset plus dataSize with wrapping U32 arithmetic a...

CVE-2026-92154

F´ F Prime is a framework that enables development and deployment of spaceflight and other embedded software applications. Prior to 4.2.0, Svc::FileUplink handleDataPacket offset and size validation is vulnerable because the component checks byteOffset plus dataSize with wrapping U32 arithmetic a...

PT-2026-98766

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the cls u32 classifier where the node ID pool can be exhausted. The function gen new kid fails to report an error when idr alloc u32 ranges are full, instead returning...

SUSE CVE-2026-93182

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Fix overflow in updatetgcfsrunnable A divide-by-zero crash is observed when running hackbench: 14697.488452 CPU: 112 UID: 0 PID: 124791 Comm: hackbench Not tainted 7.1.0-rc2+ 14697.492627 RIP:...

CVE-2026-93182

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Fix overflow in updatetgcfsrunnable A divide-by-zero crash is observed when running hackbench: 14697.488452 CPU: 112 UID: 0 PID: 124791 Comm: hackbench Not tainted 7.1.0-rc2+ 14697.492627 RIP:...

AZL-102744 CVE-2026-93182 affecting package kernel for versions less than 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: sched/fair: Fix overflow in updatetgcfsrunnable A divide-by-zero crash is observed when running hackbench: 14697.488452 CPU: 112 UID: 0 PID: 124791 Comm: hackbench Not tainted 7.1.0-rc2+ 14697.492627 RIP:...

AZL-101876 CVE-2026-93125 affecting package kernel 6.6.157.1-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject rdonly/rdwrbufsize kfunc arguments that exceed u32 max checkkfuncargs detects a kfunc argument named rdonlybufsize or rdwrbufsize and stores reg-varoff.value into meta-r0size, a u64, and does not bound it...

DEBIAN-CVE-2026-93125

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject rdonly/rdwrbufsize kfunc arguments that exceed u32 max checkkfuncargs detects a kfunc argument named rdonlybufsize or rdwrbufsize and stores reg-varoff.value into meta-r0size, a u64, and does not bound it...

DEBIAN-CVE-2026-90109

In the Linux kernel, the following vulnerability has been resolved: net: sched: fix 32-bit backlog wrap in gred, bfifo and plug enqueue gredenqueue, bfifoenqueue and plugenqueue admit a packet when the current backlog plus the packet length fits within the queue limit: sch-qstats.backlog +...

DEBIAN-CVE-2026-90100

In the Linux kernel, the following vulnerability has been resolved: ptp: netc: fix period truncation and potential divide-by-zero in PEROUT The maxperiod bound in nettimerenableperout was computed as: maxperiod = u64NETCTMRDEFAULTFIPER + integralperiod; which exceeds U32MAX when integralperiod 0...

SUSE CVE-2026-89533

In the Linux kernel, the following vulnerability has been resolved: svcrdma: Fix offset arithmetic in readchunkrange svcrdmareadchunkrange walks a Read chunk's segment list to build a sub-range starting at byte offset and spanning length bytes for a Position-Zero or Call chunk. Two arithmetic...

CVE-2026-93182

CVE-2026-93182 is a u32 overflow in the Linux kernel's CFS scheduler (sched/fair), specifically in update_tg_cfs_runnable(). The overflow occurs when se->avg.runnable_avg * divider exceeds the 32-bit range, corrupting the runnable sum and cascading through load-average propagation to produce a...