Security update for the Linux Kernel (Live Patch 66 for SLE 12 SP5)

This update for the Linux Kernel 4.12.14-122250 fixes several issues. The following security issues were fixed: CVE-2025-37797: netsched: hfsc: Fix a UAF vulnerability in class handling bsc1245793. CVE-2025-37752: netsched: schsfq: move the limit validation bsc1245776. CVE-2025-21702:...

CVE-2025-38468

In the Linux kernel, the following vulnerability has been resolved: net/sched: Return NULL when htblookupleaf encounters an empty rbtree htblookupleaf has a BUGON that can trigger with the following: tc qdisc del dev lo root tc qdisc add dev lo root handle 1: htb default 1 tc class add dev lo...

CLSA-2025-1750176020 kernel: Fix of 6 CVEs

pfifotailenqueue: Drop new packet when sch-limit == 0 CVE-2025-21702 - xfs: add bounds checking to xlogrecoverprocessdata CVE-2024-41014 - netfilter: validate user input for expected length CVE-2024-35896 - nfs: fix UAF in direct writes CVE-2024-26958 - Squashfs: check the inode number is not the...

CVE-2025-38000

In the Linux kernel, the following vulnerability has been resolved: schhfsc: Fix qlen accounting bug when using peek in hfscenqueue When enqueuing the first packet to an HFSC class, hfscenqueue calls the child qdisc's peek operation before incrementing sch-q.qlen and sch-qstats.backlog. If the...

UBUNTU-CVE-2025-38000

In the Linux kernel, the following vulnerability has been resolved: schhfsc: Fix qlen accounting bug when using peek in hfscenqueue When enqueuing the first packet to an HFSC class, hfscenqueue calls the child qdisc's peek operation before incrementing sch-q.qlen and sch-qstats.backlog. If the...

CVE-2025-38000

CVE-2025-38000 affects the Linux kernel HFSC scheduler qlen accounting: when enqueuing the first packet, hfsc_enqueue() previously used child qdisc peek() before updating sch->q.qlen and sch->qstats.backlog, which could trigger a dequeue and leave the HFSC class in an inconsistent state (po...

CVE-2025-38000 sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue()

In the Linux kernel, the following vulnerability has been resolved: schhfsc: Fix qlen accounting bug when using peek in hfscenqueue When enqueuing the first packet to an HFSC class, hfscenqueue calls the child qdisc's peek operation before incrementing sch-q.qlen and sch-qstats.backlog. If the...

PT-2025-24197

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A bug in the Linux kernel's HFSC qdisc has been identified, which can lead to inconsistent queue accounting. This occurs when the hfsc enqueue function calls the child qdisc's peek...

CVE-2025-22058

CVE-2025-22058 affects the Linux kernel UDP memory accounting. When INT_MAX was used for SO_RCVBUF, an overflow in udp_rmem_release() could wrap the total UDP memory, causing memory accounting to double after socket close and potentially leading to packet drops once rmem_alloc exceeded net.ipv4.u...

SUSE CVE-2025-21903

In the Linux kernel, the following vulnerability has been resolved: mctp i3c: handle NULL header address daddr can be NULL if there is no neighbour table entry present, in that case the tx packet should be dropped. saddr will usually be set by MCTP core, but check for NULL in case a packet is...

Amazon Linux 2 : kernel (ALASKERNEL-5.4-2025-096)

The version of kernel installed on the remote host is prior to 5.4.290-205.405. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.4-2025-096 advisory. Insufficient control flow management for the IntelR 82599 Ethernet Controllers and Adapters may allow an...

CVE-2025-21702

In the Linux kernel, the following vulnerability has been resolved: pfifotailenqueue: Drop new packet when sch-limit == 0 Expected behaviour: In case we reach scheduler's limit, pfifotailenqueue will drop a packet in scheduler's queue and decrease scheduler's qlen by one. Then, pfifotailenqueue...

SUSE CVE-2025-21676

In the Linux kernel, the following vulnerability has been resolved: net: fec: handle pagepooldevallocpages error The fecenetupdatecbd function calls pagepooldevallocpages but did not handle the case when it returned NULL. There was a WARNON!newpage but it would still proceed to use the NULL point...

CVE-2025-21676

In the Linux kernel, the following vulnerability has been resolved: net: fec: handle pagepooldevallocpages error The fecenetupdatecbd function calls pagepooldevallocpages but did not handle the case when it returned NULL. There was a WARNON!newpage but it would still proceed to use the NULL point...

DEBIAN-CVE-2025-21676

In the Linux kernel, the following vulnerability has been resolved: net: fec: handle pagepooldevallocpages error The fecenetupdatecbd function calls pagepooldevallocpages but did not handle the case when it returned NULL. There was a WARNON!newpage but it would still proceed to use the NULL point...

UBUNTU-CVE-2025-21676

In the Linux kernel, the following vulnerability has been resolved: net: fec: handle pagepooldevallocpages error The fecenetupdatecbd function calls pagepooldevallocpages but did not handle the case when it returned NULL. There was a WARNON!newpage but it would still proceed to use the NULL point...

CVE-2025-21676 net: fec: handle page_pool_dev_alloc_pages error

In the Linux kernel, the following vulnerability has been resolved: net: fec: handle pagepooldevallocpages error The fecenetupdatecbd function calls pagepooldevallocpages but did not handle the case when it returned NULL. There was a WARNON!newpage but it would still proceed to use the NULL point...

SUSE CVE-2024-53043

In the Linux kernel, the following vulnerability has been resolved: mctp i2c: handle NULL header address daddr can be NULL if there is no neighbour table entry present, in that case the tx packet should be dropped. saddr will usually be set by MCTP core, but check for NULL in case a packet is...

DEBIAN-CVE-2024-53043

In the Linux kernel, the following vulnerability has been resolved: mctp i2c: handle NULL header address daddr can be NULL if there is no neighbour table entry present, in that case the tx packet should be dropped. saddr will usually be set by MCTP core, but check for NULL in case a packet is...

UBUNTU-CVE-2024-53043

In the Linux kernel, the following vulnerability has been resolved: mctp i2c: handle NULL header address daddr can be NULL if there is no neighbour table entry present, in that case the tx packet should be dropped. saddr will usually be set by MCTP core, but check for NULL in case a packet is...