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A use after free vulnerability was found in prepare_to_relocate in fs/btrfs/relocation.c in btrfs in the Linux Kernel. This possible flaw can be triggered by calling btrfs_ioctl_balance() before calling btrfs_ioctl_defrag().

🗓️ 10 Jun 2023 07:00:00Reported by MicrosoftType 
mscve
 mscve🔗 msrc.microsoft.com👁 7 Views

Use after free in prepare_to_relocate of btrfs relocation, triggerable when balance precedes defrag.

Related
Detection
ReporterTitlePublishedViews
Family
Tenable Nessus		Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2023-070)
21 Mar 202300:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2-2023-2100 (ALAS-2023-2100)
1 Jul 202300:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2023-034 (ALASKERNEL-5.10-2023-034)
29 Jun 202300:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2022-008 (ALASKERNEL-5.15-2022-008)
14 Oct 202200:00
–nessus
Tenable Nessus		Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2023-047 (ALASKERNEL-5.4-2023-047)
29 Jun 202300:00
–nessus
Tenable Nessus		Amazon Linux AMI : kernel (ALAS-2023-1773)
3 Jul 202300:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0114: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0114)
14 May 202500:00
–nessus
Tenable Nessus		Alibaba Cloud Linux 3 : 0136: cloud-kernel bugfix, enhancement and (ALINUX3-SA-2023:0136)
14 May 202500:00
–nessus
Tenable Nessus		Debian dla-3508 : hyperv-daemons - security update
28 Jul 202300:00
–nessus
Tenable Nessus		Debian dla-3623 : linux-config-5.10 - security update
20 Oct 202300:00
–nessus
Rows per page
Vulners
Node
microsoftcbl2_kernel_5.15.116.1-2Range<5.15.116.1-2

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17 Jul 2023 07:00Current
7.3High risk
Vulners AI Score7.3
CVSS 3.17.8
EPSS0.00442
SSVC
use after freebtrfs relocationlinux kernelbalance operationdefrag operation
7