Threats Tagged 'ubuntu-cve-2026-74735'
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Threats Tagged 'ubuntu-cve-2026-74735'
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Linux azure: In the Linux kernel, the following vulnerability has been resolved: l2tp: fix tunnel and session refcount leak on seq_file release In… (CVE-2026-74735)CVE-2026-74735 0 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. Join the discussion | GCVE Database | 08/26/2026, 15:16:00 UTC Added: 09/03/2026, 15:17:09 UTC |
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