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CVE-2026-23144 — mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure

Affected: Linux

In the Linux kernel, the following vulnerability has been resolved:

mm/damon/sysfs: cleanup attrs subdirs on context dir setup failure

When a context DAMON sysfs directory setup is failed after setup of attrs/ directory, subdirectories of attrs/ directory are not cleaned up. As a result, DAMON sysfs interface is nearly broken until the system reboots, and the memory for the unremoved directory is leaked.

Cleanup the directories under such failures.

RHSA-2026:10108 — Red Hat Security Advisory: kernel security update

kernel: Bluetooth: MGMT: Fix possible UAFs kernel: mlxsw: spectrum_mr: Fix use-after-free when updating multicast route stats kernel: Linux kernel: Denial of Service via unsafe requeue in rxrpc_recvmsg kernel: Linux kernel: Denial of Service due to a deadlock in hugetlb folio migration kernel: Kernel: Privilege escalation or denial of service in nf_tables via inverted element activity check kernel: Linux kernel: Local denial of service and memory leak in DAMON sysfs via setup failure kernel: Linux kernel: Use-after-free in bonding module can cause system crash or arbitrary code execution kernel: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() kernel: net/sched: cls_u32: use skb_header_pointer_careful() kernel: kernel: Privilege escalation or denial of service via use-after-free in nf_tables_addchain() kernel: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache

RHSA-2026:6153 — Red Hat Security Advisory: kernel security update

kernel: Linux kernel: Use-After-Free vulnerability in ATM subsystem kernel: drm/sched: Fix potential double free in drm_sched_job_add_resv_dependencies kernel: Linux kernel: Local denial of service and memory leak in DAMON sysfs via setup failure kernel: Linux kernel: Use-after-free in bonding module can cause system crash or arbitrary code execution kernel: ALSA: aloop: Fix racy access at PCM trigger kernel: scsi: target: iscsi: Fix use-after-free in iscsit_dec_session_usage_count() kernel: net/sched: cls_u32: use skb_header_pointer_careful() kernel: macvlan: fix error recovery in macvlan_common_newlink()