The vulnerability in the block/blk-cgroup.c component of the Linux operating system’s kernel allows a hacker to cause a service failure.

The vulnerability in the block/blk-cgroup.c component of the Linux operating system’s kernel relates to the improper release of memory before removing the last reference. Exploiting this vulnerability can allow an attacker to cause a service failure...

PT-2025-46598

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel’s BPF subsystem contains an issue where the expected attach type is not properly enforced for tailcall compatibility. A fuzzer tool discovered an uninitialized pointer...

Linux Distros Unpatched Vulnerability : CVE-2025-39881

"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - kernfs: Fix UAF in polling when open file is released A use-after-free UAF vulnerability was identified in the PSI Pressure Stall Information monitoring...

bpf: Tell memcg to use allow_spinning=false path in bpf_timer_init()

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SUSE CVE-2025-39881

In the Linux kernel, the following vulnerability has been resolved: kernfs: Fix UAF in polling when open file is released A use-after-free UAF vulnerability was identified in the PSI Pressure Stall Information monitoring mechanism: BUG: KASAN: slab-use-after-free in psitriggerpoll+0x3c/0x140 Read...

CVE-2025-39886

In the Linux kernel, the following vulnerability has been resolved: bpf: Tell memcg to use allowspinning=false path in bpftimerinit Currently, calling bpfmapkmallocnode from bpfasyncinit can cause various locking issues; see the following stack trace edited for style as one example: ... 10.011566...

CVE-2025-39881

In the Linux kernel, the following vulnerability has been resolved: kernfs: Fix UAF in polling when open file is released A use-after-free UAF vulnerability was identified in the PSI Pressure Stall Information monitoring mechanism: BUG: KASAN: slab-use-after-free in psitriggerpoll+0x3c/0x140 Read...

UBUNTU-CVE-2025-39881

In the Linux kernel, the following vulnerability has been resolved: kernfs: Fix UAF in polling when open file is released A use-after-free UAF vulnerability was identified in the PSI Pressure Stall Information monitoring mechanism: BUG: KASAN: slab-use-after-free in psitriggerpoll+0x3c/0x140 Read...

UBUNTU-CVE-2025-39886

In the Linux kernel, the following vulnerability has been resolved: bpf: Tell memcg to use allowspinning=false path in bpftimerinit Currently, calling bpfmapkmallocnode from bpfasyncinit can cause various locking issues; see the following stack trace edited for style as one example: ... 10.011566...

CVE-2025-39886

CVE-2025-39886 in the Linux kernel relates to a locking issue triggered when bpf_map_kmalloc_node() is called from __bpf_async_init(), potentially affecting memcg accounting and causing MEMCG_MAX events. The documented fix changes the bpf_timer_init() path to use allow_spinning=false and, per ups...

CVE-2025-39886 bpf: Tell memcg to use allow_spinning=false path in bpf_timer_init()

In the Linux kernel, the following vulnerability has been resolved: bpf: Tell memcg to use allowspinning=false path in bpftimerinit Currently, calling bpfmapkmallocnode from bpfasyncinit can cause various locking issues; see the following stack trace edited for style as one example: ... 10.011566...

CVE-2025-39886 bpf: Tell memcg to use allow_spinning=false path in bpf_timer_init()

In the Linux kernel, the following vulnerability has been resolved: bpf: Tell memcg to use allowspinning=false path in bpftimerinit Currently, calling bpfmapkmallocnode from bpfasyncinit can cause various locking issues; see the following stack trace edited for style as one example: ... 10.011566...

CVE-2025-39886 bpf: Tell memcg to use allow_spinning=false path in bpf_timer_init()

In the Linux kernel, the following vulnerability has been resolved: bpf: Tell memcg to use allowspinning=false path in bpftimerinit Currently, calling bpfmapkmallocnode from bpfasyncinit can cause various locking issues; see the following stack trace edited for style as one example: ... 10.011566...

CVE-2025-39881

CVE-2025-39881 involves a use-after-free in the Linux kernel PSI/PCI monitoring path within kernfs polling. The issue occurs when an open PSI-related file is released while an epoll poll still holds references, leading to use-after-free during re-enabling the monitoring. The fix introduces kernfs...

CVE-2025-39881 kernfs: Fix UAF in polling when open file is released

In the Linux kernel, the following vulnerability has been resolved: kernfs: Fix UAF in polling when open file is released A use-after-free UAF vulnerability was identified in the PSI Pressure Stall Information monitoring mechanism: BUG: KASAN: slab-use-after-free in psitriggerpoll+0x3c/0x140 Read...

CVE-2025-39881 kernfs: Fix UAF in polling when open file is released

In the Linux kernel, the following vulnerability has been resolved: kernfs: Fix UAF in polling when open file is released A use-after-free UAF vulnerability was identified in the PSI Pressure Stall Information monitoring mechanism: BUG: KASAN: slab-use-after-free in psitriggerpoll+0x3c/0x140 Read...

PT-2025-51591

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 6.17.0-rc3 Description A deadlock situation can occur during policy configuration within the block layer blk-cgroup. This deadlock is triggered by a circular locking dependency, specifically involving locks relat...

Linux Distros Unpatched Vulnerability : CVE-2023-53421

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Reinit blkgiostatset after clearing in blkcgresetstats When blkgalloc is called ...

SUSE CVE-2023-53401

In the Linux kernel, the following vulnerability has been resolved: mm: kmem: fix a NULL pointer dereference in objstockflushrequired KCSAN found an issue in objstockflushrequired: stock-cachedobjcg can be reset between the check and dereference:...

SUSE CVE-2023-53421

In the Linux kernel, the following vulnerability has been resolved: blk-cgroup: Reinit blkgiostatset after clearing in blkcgresetstats When blkgalloc is called to allocate a blkcggq structure with the associated blkgiostatset's, there are 2 fields within blkgiostatset that requires proper...