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CVE-2022-47939 Details

Description

An issue was discovered in ksmbd in the Linux kernel 5.15 through 5.19 before 5.19.2. fs/ksmbd/smb2pdu.c has a use-after-free and OOPS for SMB2_TREE_DISCONNECT.

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References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2 CVEMailing ListPatchVendor Advisory
https://github.com/torvalds/linux/commit/cf6531d98190fa2cf92a6d8bbc8af0a4740a223c CVEPatchThird Party Advisory
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf6531d98190fa2cf92a6d8bbc8af0a4740a223c CVEMailing ListPatchVendor Advisory
https://www.secpod.com/blog/zero-day-server-message-block-smb-server-in-linux-kernel-5-15-has-a-critical-vulnerability-patch-ksmbd-immediately/ CVEThird Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-22-1690/ CVEThird Party AdvisoryVDB Entry

see all 12 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-416Use After Free[email protected]
CWE-416Use After FreeCISA-ADP

Affected Products

ProductVersions
linux linux kernel
>= 5.15, < 5.15.61
>= 5.16, < 5.18.18
>= 5.19, < 5.19.2

CPE

  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

12 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2022-47939
NVD Published Date:
Dec 23, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]