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CVE-2025-68787
CVE-2025-68787
In the Linux kernel, the following vulnerability has been resolved: netrom: Fix memory leak in nr_sendmsg() syzbot reported a memory leak [1]. When function sock_alloc_send_skb() return NULL in nr_output(), the original skb is not freed, which was allocated in nr_sendmsg(). Fix this by freeing it before return. [1] BUG: memory leak unreferenced object 0xffff888129f35500 (size 240): comm "syz.0.17", pid 6119, jiffies 4294944652 hex dump (first 32 bytes): 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ 00 00 00 00 00 00 00 00 00 10 52 28 81 88 ff ff ..........R(.... backtrace (crc 1456a3e4): kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline] slab_post_alloc_hook mm/slub.c:4983 [inline] slab_alloc_node mm/slub.c:5288 [inline] kmem_cache_alloc_node_noprof+0x36f/0x5e0 mm/slub.c:5340 __alloc_skb+0x203/0x240 net/core/skbuff.c:660 alloc_skb include/linux/skbuff.h:1383 [inline] alloc_skb_with_frags+0x69/0x3f0 net/core/skbuff.c:6671 sock_alloc_send_pskb+0x379/0x3e0 net/core/sock.c:2965 sock_alloc_send_skb include/net/sock.h:1859 [inline] nr_sendmsg+0x287/0x450 net/netrom/af_netrom.c:1105 sock_sendmsg_nosec net/socket.c:727 [inline] __sock_sendmsg net/socket.c:742 [inline] sock_write_iter+0x293/0x2a0 net/socket.c:1195 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x45d/0x710 fs/read_write.c:686 ksys_write+0x143/0x170 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xa4/0xfa0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f
Published Jan 14, 2026
https://lore.kernel.org/linux-cve-announce/2026011303-CVE-2025-68787-af6d@gregkh/
CVSS Score
Medium
4.8
Components Impacted
Components Impacted
Security Details
Security Details
Sonatype Research
Sonatype Research
Ecosystem
Package
Version
Ecosystem
Package
Version
rpm
kernel
2.6.32-131.0.15.el6
rpm
kernel
2.6.32-131.12.1.el6
rpm
kernel
2.6.32-131.17.1.el6
rpm
kernel
2.6.32-131.2.1.el6
rpm
kernel
2.6.32-131.21.1.el6
rpm
kernel
2.6.32-131.4.1.el6
rpm
kernel
2.6.32-131.6.1.el6
rpm
kernel
2.6.32-220.13.1.el6
rpm
kernel
2.6.32-220.17.1.el6
rpm
kernel
2.6.32-220.2.1.el6
rpm
kernel
2.6.32-220.23.1.el6
rpm
kernel
2.6.32-220.4.1.el6
rpm
kernel
2.6.32-220.4.2.el6
rpm
kernel
2.6.32-220.7.1.el6
rpm
kernel
2.6.32-220.el6
rpm
kernel
2.6.32-279.1.1.el6
rpm
kernel
2.6.32-279.11.1.el6
rpm
kernel
2.6.32-279.14.1.el6
rpm
kernel
2.6.32-279.19.1.el6
rpm
kernel
2.6.32-279.2.1.el6
rpm
kernel
2.6.32-279.22.1.el6
rpm
kernel
2.6.32-279.5.1.el6
rpm
kernel
2.6.32-279.5.2.el6
rpm
kernel
2.6.32-279.9.1.el6
rpm
kernel
2.6.32-279.el6
rpm
kernel
2.6.32-358.0.1.el6
rpm
kernel
2.6.32-358.11.1.el6
rpm
kernel
2.6.32-358.14.1.el6
rpm
kernel
2.6.32-358.18.1.el6
rpm
kernel
2.6.32-358.2.1.el6
rpm
kernel
2.6.32-358.23.2.el6
rpm
kernel
2.6.32-358.6.1.el6
rpm
kernel
2.6.32-358.6.2.el6
rpm
kernel
2.6.32-358.el6
rpm
kernel
2.6.32-431.1.2.el6
rpm
kernel
2.6.32-431.11.2.el6
rpm
kernel
2.6.32-431.17.1.el6
rpm
kernel
2.6.32-431.20.3.el6
rpm
kernel
2.6.32-431.20.5.el6
rpm
kernel
2.6.32-431.23.3.el6
rpm
kernel
2.6.32-431.29.2.el6
rpm
kernel
2.6.32-431.3.1.el6
rpm
kernel
2.6.32-431.5.1.el6
rpm
kernel
2.6.32-431.el6
rpm
kernel
2.6.32-504.1.3.el6
rpm
kernel
2.6.32-504.12.2.el6
rpm
kernel
2.6.32-504.16.2.el6
rpm
kernel
2.6.32-504.23.4.el6
rpm
kernel
2.6.32-504.3.3.el6
rpm
kernel
2.6.32-504.30.3.el6
1-50 of 722
CVE-2025-68787 | Components Impacted | Sonatype Guide | Sonatype Guide
