Security update for the Linux Kernel (Live Patch 32 for SUSE Linux Enterprise 15 SP5)

This update for the SUSE Linux Enterprise Kernel 5.14.21-150500.55.127 fixes various security issues: The following security issues were fixed: CVE-2026-46150: fanotify: fix false positive on permission events bsc1267388. CVE-2026-64423: ipv4: igmp: remove multicast group from hash table on devic...

CVE-2026-90050: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: fq: clamp quantum and initialquantum in change path The fq change path accepts TCAFQQUANTUM in 1, INTMAX and TCAFQINITIALQUANTUM up to INTMAX, while fqinit already clamps to 1, 120. A user can override the init clamp v...

CVE-2026-90072: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: sfq: clamp quantum to avoid signed overflow soft lockup sfqinit sets q-quantum = pschedmtuqdiscdevsch unsigned. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu return...

CVE-2026-90076: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: fq: add overflow bounds to quantum and initial quantum fqinit computes quantum = 2 pschedmtu and initialquantum = 10 pschedmtu with no overflow check. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU...

PT-2026-94596

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the net/sched: cls api component where a race condition occurs during the insertion of a protocol. In the tc new tfilter function, if a request loses a race to insert ...

CVE-2026-90099: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: account classifier filter allocations to memcg Allocations in the tc classifier change paths filter objects, per-CPU counters, and per-filter aux data use plain GFPKERNEL without GFPACCOUNT, allowing unprivileged users...

CVE-2026-90075: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqcodel: clamp default quantum and mtu fqcodelinit sets q-quantum = pschedmtuqdiscdevsch without clamping. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu return 0x80000000...

PT-2026-94421

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An integer overflow occurs in the net/sched component when handling the quantum value. The hhf init function sets q-quantum using psched mtu without an overflow check. On devices with an...

CVE-2026-90073: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: hhf: clamp quantum before hhfchange to avoid overflow hhfinit sets q-quantum = pschedmtuqdiscdevsch with no overflow check. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes weight...

PT-2026-94946

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A race condition exists in the cgroup/cpuset component where the nr deadline tasks variable in the cpuset structure can be corrupted. This occurs because the variable can be modified...

CVE-2026-90078: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: actskbmod: fix length calculations and avoid invalid header warnings syzbot reported a warning in skbnetworkheaderlen triggered by tcfskbmodact: !skbtransportheaderwassetskb WARNING: CPU: 0 PID: 14949 at...

CVE-2026-90109: Undefined Security Weakness

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 +...

CVE-2026-90074: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: fqpie: clamp default quantum to avoid signed overflow fqpieinit sets q-quantum = pschedmtuqdiscdevsch without clamping. A device with a huge MTU e.g. dummy with maxmtu == 0 accepting MTU 2147483634 makes pschedmtu retu...

CVE-2026-93182: Undefined Security Weakness

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-2026-90083: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: actife: Only operate on Ethernet frames actife encapsulates/decapsulates the original Ethernet header and uses skb-dev-hardheaderlen as the length of that header. That is only correct for Ethernet devices: on a device...

CVE-2026-90053: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: schhtb: limit htbclassify inner-class filter hops htbclassify follows each filter-selected inner class by switching to cl-filterlist, but never bounds the number of hops. A filter on an inner class can point back to...

CVE-2026-90058: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: bound qdiscpktlen to prevent qdisc soft lockup qdiscgetstab accepts a user-supplied size table, and qdisccalculatepktlen amplifies qdiscpktlen through the overhead, the size-table data u16, and sizelog up to...

CVE-2026-90071: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: schteql: restore skb-dev on the slave failure path teqlmasterxmit sets skb-dev = slave before calling the slave's ndostartxmit, but never restores it when that transmit fails. The skb then walks on to the next slave...

CVE-2026-90248: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsapi: fix teardown of an adopted proto on insert-race loss In tcnewtfilter the create branch sets tpcreated = 1 before calling tcfchaintpinsertunique. When the caller loses the race another request inserted a proto a...

SUSE-SU-2026:23799-1 Security update for the Linux Kernel (Live Patch 8 for SUSE Linux Enterprise 16)

This update for the SUSE Linux Enterprise Kernel 6.12.0-160000.29.1 fixes various security issues: The following security issues were fixed: - CVE-2026-46150: fanotify: fix false positive on permission events bsc1267388. - CVE-2026-53360: KVM: SEV: Require in-GHCB scratch area if GHCB v2+ is in u...