{"cve":"CVE-2025-68787","nvd":{"published":"2026-01-13T16:15:58.497","modified":"2026-10-15T02:18:13.963","status":"Deferred","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nnetrom: Fix memory leak in nr_sendmsg()\n\nsyzbot reported a memory leak [1].\n\nWhen function sock_alloc_send_skb() return NULL in nr_output(), the\noriginal skb is not freed, which was allocated in nr_sendmsg(). Fix this\nby freeing it before return.\n\n[1]\nBUG: memory leak\nunreferenced object 0xffff888129f35500 (size 240):\n  comm \"syz.0.17\", pid 6119, jiffies 4294944652\n  hex dump (first 32 bytes):\n    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    00 00 00 00 00 00 00 00 00 10 52 28 81 88 ff ff  ..........R(....\n  backtrace (crc 1456a3e4):\n    kmemleak_alloc_recursive include/linux/kmemleak.h:44 [inline]\n    slab_post_alloc_hook mm/slub.c:4983 [inline]\n    slab_alloc_node mm/slub.c:5288 [inline]\n    kmem_cache_alloc_node_noprof+0x36f/0x5e0 mm/slub.c:5340\n    __alloc_skb+0x203/0x240 net/core/skbuff.c:660\n    alloc_skb include/linux/skbuff.h:1383 [inline]\n    alloc_skb_with_frags+0x69/0x3f0 net/core/skbuff.c:6671\n    sock_alloc_send_pskb+0x379/0x3e0 net/core/sock.c:2965\n    sock_alloc_send_skb include/net/sock.h:1859 [inline]\n    nr_sendmsg+0x287/0x450 net/netrom/af_netrom.c:1105\n    sock_sendmsg_nosec net/socket.c:727 [inline]\n    __sock_sendmsg net/socket.c:742 [inline]\n    sock_write_iter+0x293/0x2a0 net/socket.c:1195\n    new_sync_write fs/read_write.c:593 [inline]\n    vfs_write+0x45d/0x710 fs/read_write.c:686\n    ksys_write+0x143/0x170 fs/read_write.c:738\n    do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n    do_syscall_64+0xa4/0xfa0 arch/x86/entry/syscall_64.c:94\n    entry_SYSCALL_64_after_hwframe+0x77/0x7f","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/09efbf54eeaecebe882af603c9939a4b1bb9567e","https://git.kernel.org/stable/c/156a0f6341dce634a825db49ca20b48b1ae9bcc1","https://git.kernel.org/stable/c/51f5fbc1681bdcffcc7d18bf3dfdb2b1278d3977","https://git.kernel.org/stable/c/613d12dd794e078be8ff3cf6b62a6b9acf7f4619","https://git.kernel.org/stable/c/73839497bbde5cd4fd02bbd9c8bc2640780ae65d"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:19:41.481987139+00:00"},"epss":{"cve":"CVE-2025-68787","score":0.00234,"percentile":0.14136,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}