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The Linux kernel has had multiple vulnerabilities related to reference counting that could lead to memory leaks or dangling pointers.

Software DevelopmentApr 18, 2026score 0.175 posts · 0 replies across 1 instances
This thread discusses several vulnerabilities in the Linux kernel, specifically related to memory management and reference counting issues in various subsystems such as ksmbd, netfilter, and smb. These vulnerabilities were resolved in updates, highlighting ongoing efforts to improve kernel stability and security.

Claims

The Linux kernel has had multiple vulnerabilities related to reference counting that could lead to memory leaks or dangling pointers.
Parent: Linux KernelEntity: Memory ManagementSub-entity: Reference CountingImpact: negativeDate: Apr 18, 2026Target: The Linux kernel's memory management system
The Linux kernel has been actively addressing security vulnerabilities through regular updates and patches.
Parent: Linux KernelEntity: SecuritySub-entity: Vulnerability FixesImpact: positiveDate: Apr 18, 2026Target: The Linux kernel's security patching process

Source posts

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🚨 EUVD-2026-7681 📊 Score: n/a 📦 Product: Linux, Linux, Linux (+15 more) 🏢 Vendor: Linux 📅 Published: 2026-02-18 | Updated: 2026-04-18 📝 In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix infinite loop caused by next_smb2_rcv_hdr_off reset in error paths The problem occurs when a signed request fails smb2 signature verification check. ... 🔗 https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-7681 #cybersecurity #infosec #euvd #cve #vulnerability
1 boosts · 0 favs · 0 replies · Apr 18, 2026
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🚨 EUVD-2026-4404 📊 Score: n/a 📦 Product: Linux, Linux, Linux (+18 more) 🏢 Vendor: Linux 📅 Published: 2026-01-23 | Updated: 2026-04-18 📝 In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix refcount leak when invalid session is found on session lookup When a session is found but its state is not SMB2_SESSION_VALID, It indicates that no v... 🔗 https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-4404 #cybersecurity #infosec #euvd #cve #vulnerability
0 boosts · 0 favs · 0 replies · Apr 18, 2026
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🚨 EUVD-2025-36975 📊 Score: n/a 📦 Product: Linux, Linux, Linux (+12 more) 🏢 Vendor: Linux 📅 Published: 2025-10-30 | Updated: 2026-04-18 📝 In the Linux kernel, the following vulnerability has been resolved: smb: client: Fix refcount leak for cifs_sb_tlink Fix three refcount inconsistency issues related to `cifs_sb_tlink`. Comments for `cifs_sb_tlink` state that ... 🔗 https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-36975 #cybersecurity #infosec #euvd #cve #vulnerability
0 boosts · 0 favs · 0 replies · Apr 18, 2026
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🚨 EUVD-2025-28948 📊 Score: n/a 📦 Product: Linux, Linux, Linux (+14 more) 🏢 Vendor: Linux 📅 Published: 2025-09-11 | Updated: 2026-04-18 📝 In the Linux kernel, the following vulnerability has been resolved: netfilter: ctnetlink: remove refcounting in expectation dumpers Same pattern as previous patch: do not keep the expectation object alive via refcount, only st... 🔗 https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-28948 #cybersecurity #infosec #euvd #cve #vulnerability
1 boosts · 0 favs · 0 replies · Apr 18, 2026
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🚨 EUVD-2025-13044 📊 Score: n/a 📦 Product: Linux, Linux, Linux (+12 more) 🏢 Vendor: Linux 📅 Published: 2025-05-01 | Updated: 2026-04-18 📝 In the Linux kernel, the following vulnerability has been resolved: ksmbd: Fix dangling pointer in krb_authenticate krb_authenticate frees sess->user and does not set the pointer to NULL. It calls ksmbd_krb5_authenticate to re... 🔗 https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-13044 #cybersecurity #infosec #euvd #cve #vulnerability
0 boosts · 0 favs · 0 replies · Apr 18, 2026
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