CVE-2022-47939

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.

• CWE-416
• CWE-416

• http://www.openwall.com/lists/oss-security/2022/12/23/10Mailing List, Third Party Advisory
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2Mailing List, Patch, Vendor Advisory
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf6531d98190fa2cf92a6d8bbc8af0a4740a223cMailing List, Patch, Vendor Advisory
• https://github.com/torvalds/linux/commit/cf6531d98190fa2cf92a6d8bbc8af0a4740a223cPatch, Third Party 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/Third Party Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-22-1690/Third Party Advisory, VDB Entry
• http://www.openwall.com/lists/oss-security/2022/12/23/10Mailing List, Third Party Advisory
• https://cdn.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.2Mailing List, Patch, Vendor Advisory
• https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=cf6531d98190fa2cf92a6d8bbc8af0a4740a223cMailing List, Patch, Vendor Advisory
• https://github.com/torvalds/linux/commit/cf6531d98190fa2cf92a6d8bbc8af0a4740a223cPatch, Third Party 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/Third Party Advisory
• https://www.zerodayinitiative.com/advisories/ZDI-22-1690/Third Party Advisory, VDB Entry

Published

Dec 23, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
• Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
• PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
• AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.

• CVE-2022-47933Brave Browser before 1.42.51 allowed a remote attacker to ca…6.5
• CVE-2022-47934Brave Browser before 1.43.88 allowed a remote attacker to ca…6.5
• CVE-2022-47935A vulnerability has been identified in JT Open (All versions…7.8
• CVE-2022-47936A vulnerability has been identified in JT Open (All versions…7.8
• CVE-2022-47937Improper input validation in the Apache Sling Commons JSON b…9.8
• CVE-2022-47938An issue was discovered in ksmbd in the Linux kernel 5.15 th…6.5
• CVE-2022-4794The AAWP WordPress plugin before 3.12.3 can be used to abuse…7.5
• CVE-2022-47940An issue was discovered in ksmbd in the Linux kernel 5.15 th…8.1
• CVE-2022-47941An issue was discovered in ksmbd in the Linux kernel 5.15 th…7.5
• CVE-2022-47942An issue was discovered in ksmbd in the Linux kernel 5.15 th…8.8
• CVE-2022-47943An issue was discovered in ksmbd in the Linux kernel 5.15 th…8.1
• CVE-2022-47945ThinkPHP Framework before 6.0.14 allows local file inclusion…9.8