CVE-2022-50534 dm thin: Use last transaction's pmd->root when commit failed

In the Linux kernel, the following vulnerability has been resolved: dm thin: Use last transaction's pmd-root when commit failed Recently we found a softlock up problem in dm thin pool btree lookup code due to corrupted metadata: Kernel panic - not syncing: softlockup: hung tasks CPU: 7 PID: 26692...

PT-2025-41039

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the dm thin pool btree lookup code that can lead to a softlockup. This issue arises from corrupted metadata, potentially causing an infinite loop...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: dm thin: fix use-after-free crash in dmsmregisterthresholdcallback CVE-2022-50092 In the Linux kernel, the following vulnerability has been resolved: sched, cpuset: Fix dlcpubusy panic due to empty cs-cpusallowed...

CVE-2022-50092

In the Linux kernel, the following vulnerability has been resolved: dm thin: fix use-after-free crash in dmsmregisterthresholdcallback Fault inject on pool metadata device reports: BUG: KASAN: use-after-free in dmpoolregistermetadatathreshold+0x40/0x80 Read of size 8 at addr ffff8881b9d50068 by...

SUSE CVE-2022-50092

In the Linux kernel, the following vulnerability has been resolved: dm thin: fix use-after-free crash in dmsmregisterthresholdcallback Fault inject on pool metadata device reports: BUG: KASAN: use-after-free in dmpoolregistermetadatathreshold+0x40/0x80 Read of size 8 at addr ffff8881b9d50068 by...

CVE-2022-50092

In the Linux kernel, the following vulnerability has been resolved: dm thin: fix use-after-free crash in dmsmregisterthresholdcallback Fault inject on pool metadata device reports: BUG: KASAN: use-after-free in dmpoolregistermetadatathreshold+0x40/0x80 Read of size 8 at addr ffff8881b9d50068 by...

UBUNTU-CVE-2022-50092

In the Linux kernel, the following vulnerability has been resolved: dm thin: fix use-after-free crash in dmsmregisterthresholdcallback Fault inject on pool metadata device reports: BUG: KASAN: use-after-free in dmpoolregistermetadatathreshold+0x40/0x80 Read of size 8 at addr ffff8881b9d50068 by...

CVE-2022-50092

In the Linux kernel, the following vulnerability has been resolved: dm thin: fix use-after-free crash in dmsmregisterthresholdcallback Fault inject on pool metadata device reports: BUG: KASAN: use-after-free in dmpoolregistermetadatathreshold+0x40/0x80 Read of size 8 at addr ffff8881b9d50068 by...

CVE-2022-50092

CVE-2022-50092 affects the Linux kernel dm-thin component. The issue is a use-after-free in dm_pool_register_metadata_threshold called during metadata-threshold registration for a thin-pool, leading to a potential use-after-free in dm_sm_register_threshold_callback. Reproduction involves manipula...

CVE-2022-50092 dm thin: fix use-after-free crash in dm_sm_register_threshold_callback

In the Linux kernel, the following vulnerability has been resolved: dm thin: fix use-after-free crash in dmsmregisterthresholdcallback Fault inject on pool metadata device reports: BUG: KASAN: use-after-free in dmpoolregistermetadatathreshold+0x40/0x80 Read of size 8 at addr ffff8881b9d50068 by...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from a post-release reuse issue in dmthin in dmsmregisterthresholdcallback...

The vulnerability of the dm thin kernel component in the Linux operating system, which allows a hacker to cause a service failure

The vulnerability of the dm thin kernel component in the Linux operating system is related to memory reading beyond the allocated buffer in the getfirstthin function in drivers/md/dm-thin.c. Exploiting this vulnerability can allow an attacker to cause a service failure...

CVE-2025-21664

In the Linux kernel, the following vulnerability has been resolved: dm thin: make getfirstthin use rcu-safe list first function The documentation in rculist.h explains the absence of listemptyrcu and cautions programmers against relying on a listempty - listfirst sequence in RCU safe code. This i...

CVE-2025-21664

In the Linux kernel, the following vulnerability has been resolved: dm thin: make getfirstthin use rcu-safe list first function The documentation in rculist.h explains the absence of listemptyrcu and cautions programmers against relying on a listempty - listfirst sequence in RCU safe code. This i...

CVE-2025-21664

CVE-2025-21664 affects the Linux kernel’s device-mapper thin provisioning path (dm-thin). The issue arises from get_first_thin using a sequence of RCU-safe list operations (list_empty_rcu() followed by list_first()) that perform separate READ_ONCE()s of the list head, which can yield inconsistent...

CVE-2025-21664 dm thin: make get_first_thin use rcu-safe list first function

In the Linux kernel, the following vulnerability has been resolved: dm thin: make getfirstthin use rcu-safe list first function The documentation in rculist.h explains the absence of listemptyrcu and cautions programmers against relying on a listempty - listfirst sequence in RCU safe code. This i...

CVE-2025-21664 dm thin: make get_first_thin use rcu-safe list first function

In the Linux kernel, the following vulnerability has been resolved: dm thin: make getfirstthin use rcu-safe list first function The documentation in rculist.h explains the absence of listemptyrcu and cautions programmers against relying on a listempty - listfirst sequence in RCU safe code. This i...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the getfirstthin function in the dm thin module not properly using RCU-safe list operations. This could resu...

CVE-2021-47343

In the Linux kernel, the following vulnerability has been resolved: dm btree remove: assign newroot only when removal succeeds removeraw in dmbtreeremove may fail due to IO read error e.g. read the content of origin block fails during shadowing, and the value of shadowspine::root is uninitialized...

CVE-2021-47343

In the Linux kernel, the following vulnerability has been resolved: dm btree remove: assign newroot only when removal succeeds removeraw in dmbtreeremove may fail due to IO read error e.g. read the content of origin block fails during shadowing, and the value of shadowspine::root is uninitialized...