VulnSocial

CVE-2026-74735Patch

LOW

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

In the Linux kernel, the following vulnerability has been resolved: l2tp: fix tunnel and session refcount leak on seq_file release In pppol2tp_proc_open() and l2tp_dfs_seq_open(), iteration state (pd->tunnel and pd->session) is kept in seq_file private data to allow iteration across multiple read() system calls. However, if userspace closes /proc/net/pppol2tp or /sys/kernel/debug/l2tp/tunnels before reading to end-of-file (EOF), any tunnel or session reference stored in pd->tunnel / pd->session is left un-dropped when seq_file private data is freed. Fix this by dropping any remaining pd->tunnel and pd->session references in pppol2tp_proc_release() and l2tp_dfs_seq_release() when closing the file.

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0.5/ 10 priority

Sources & remediation

Other references

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-08-30: 2Patch / Workaround · 2026-08-30: 2Technical Details · 2026-08-30: 208-30
Signal classification1 categories
Patch
2100.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Patch

    🚨*CVE* CVE-2026-74735 In the Linux kernel, the following vulnerability has been resolved: l2tp: fix tunnel and session refcount leak on seq_file release In pppol2tp_proc_open() and l2tp_… https://www.cve.org/CVERecord?id=CVE-2026-74735 ----- Traducción: CVE-2026-74735 En … https://infoflow.cloud`

    Post summary

    The post announces that CVE-2026-74735, a refcount leak in the Linux kernel’s L2TP implementation, has been fixed, providing no exploit, PoC, or evidence of active exploitation.

    0000065
    102 followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-74735 In the Linux kernel, the following vulnerability has been resolved: l2tp: fix tunnel and session refcount leak on seq_file release In pppol2tp_proc_open() and l2tp_… https://www.cve.org/CVERecord?id=CVE-2026-74735

    Post summary

    The Linux kernel patch for CVE-2026-74735 fixes a reference‑count leak in L2TP handling of seq_file release, resolving the reported vulnerability.

    00000943
    58.0K followersView on X

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