{"cve":"CVE-2022-50372","nvd":{"published":"2025-09-17T15:15:36.187","modified":"2026-06-17T05:23:21.740","status":"Modified","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ncifs: Fix memory leak when build ntlmssp negotiate blob failed\n\nThere is a memory leak when mount cifs:\n  unreferenced object 0xffff888166059600 (size 448):\n    comm \"mount.cifs\", pid 51391, jiffies 4295596373 (age 330.596s)\n    hex dump (first 32 bytes):\n      fe 53 4d 42 40 00 00 00 00 00 00 00 01 00 82 00  .SMB@...........\n      00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................\n    backtrace:\n      [<0000000060609a61>] mempool_alloc+0xe1/0x260\n      [<00000000adfa6c63>] cifs_small_buf_get+0x24/0x60\n      [<00000000ebb404c7>] __smb2_plain_req_init+0x32/0x460\n      [<00000000bcf875b4>] SMB2_sess_alloc_buffer+0xa4/0x3f0\n      [<00000000753a2987>] SMB2_sess_auth_rawntlmssp_negotiate+0xf5/0x480\n      [<00000000f0c1f4f9>] SMB2_sess_setup+0x253/0x410\n      [<00000000a8b83303>] cifs_setup_session+0x18f/0x4c0\n      [<00000000854bd16d>] cifs_get_smb_ses+0xae7/0x13c0\n      [<000000006cbc43d9>] mount_get_conns+0x7a/0x730\n      [<000000005922d816>] cifs_mount+0x103/0xd10\n      [<00000000e33def3b>] cifs_smb3_do_mount+0x1dd/0xc90\n      [<0000000078034979>] smb3_get_tree+0x1d5/0x300\n      [<000000004371f980>] vfs_get_tree+0x41/0xf0\n      [<00000000b670d8a7>] path_mount+0x9b3/0xdd0\n      [<000000005e839a7d>] __x64_sys_mount+0x190/0x1d0\n      [<000000009404c3b9>] do_syscall_64+0x35/0x80\n\nWhen build ntlmssp negotiate blob failed, the session setup request\nshould be freed.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","score":5.5},"cwes":["CWE-401"],"references":["https://git.kernel.org/stable/c/30b2d7f8f13664655480d6af45f60270b3eb6736","https://git.kernel.org/stable/c/fa5a70bdd5e565c8696fb04dfe18a4e8aff4695d"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T22:10:08.713834912+00:00"},"epss":{"cve":"CVE-2022-50372","score":0.00184,"percentile":0.0798,"date":"2026-10-31"},"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."]}