Critical severity9.8NVD Advisory· Published Dec 23, 2022· Updated Jun 17, 2026
CVE-2022-47939
CVE-2022-47939
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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Affected products
2Patches
Vulnerability mechanics
References
6- cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2nvdMailing ListPatchVendor Advisory
- git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/nvdMailing ListPatchVendor Advisory
- github.com/torvalds/linux/commit/cf6531d98190fa2cf92a6d8bbc8af0a4740a223cnvdPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2022/12/23/10nvdMailing ListThird Party Advisory
- www.secpod.com/blog/zero-day-server-message-block-smb-server-in-linux-kernel-5-15-has-a-critical-vulnerability-patch-ksmbd-immediately/nvdThird Party Advisory
- www.zerodayinitiative.com/advisories/ZDI-22-1690/nvdThird Party AdvisoryVDB Entry
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