CVE-2026-90175smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer
- —Not scoredno CVSS score yet
- 0.20%Exploitation in 30 daysEPSS · top 90% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
In the Linux kernel, the following vulnerability has been resolved: smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer Free it unconditionally after ksmbd_alloc_user() calls. kmemleak splat: unreferenced object 0xffff888103b83540 (size 192): comm "pool-0", pid 16970, jiffies 4377290937 hex dump (first 32 bytes): 00 00 00 00 01 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 00 00 ................ backtrace (crc 408ccc66): __kvmalloc_node_noprof+0x730/0x920 handle_generic_event+0xec/0x1a0 [ksmbd] genl_family_rcv_msg_doit+0xe0/0x130 genl_rcv_msg+0x181/0x290 netlink_rcv_skb+0x4f/0x100 genl_rcv+0x28/0x40 netlink_unicast+0x1e6/0x2c0 netlink_sendmsg+0x20a/0x450 ____sys_sendmsg+0x2e8/0x310 ___sys_sendmsg+0x78/0xc0 __sys_sendmsg+0x63/0xc0 do_syscall_64+0xa1/0x670 entry_SYSCALL_64_after_hwframe+0x76/0x7e
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 32 days later
· 32 days later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Received.
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (14 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 8a3cd890fd2a7d016a821a1c9dfd8a84d45ad320 – < 4d6fe49fa3e7fbd779c761518e6572e340233c9b
- affected a77e0e02af1c2db5fc040511aa78a58a52e116ab – < c9f2872e91b9fe99c1d0ba768906f7aeb48c8517
- affected a77e0e02af1c2db5fc040511aa78a58a52e116ab – < 7a98c3b903b10c4d6176948254012b5ca24b071b
- affected a77e0e02af1c2db5fc040511aa78a58a52e116ab – < abb5146b2d8197d695ea9eaa0847c73e34f00985
- affected a77e0e02af1c2db5fc040511aa78a58a52e116ab – < 1c3ebf832d010c08afe1359215d4121cb1ed2de5
- affected 6.6.141 – < 6.6.157
- affected 6.12
- unaffected < 6.12
- unaffected 6.6.157 – ≤ 6.6.*
- unaffected 6.12.110 – ≤ 6.12.*
- unaffected 6.18.52 – ≤ 6.18.*
- unaffected 7.2.6 – ≤ 7.2.*
- unaffected 7.3 – ≤ *
References
References5
- https://git.kernel.org/stable/c/4d6fe49fa3e7fbd779c761518e6572e340233c9b (opens in a new tab)
- https://git.kernel.org/stable/c/c9f2872e91b9fe99c1d0ba768906f7aeb48c8517 (opens in a new tab)
- https://git.kernel.org/stable/c/7a98c3b903b10c4d6176948254012b5ca24b071b (opens in a new tab)
- https://git.kernel.org/stable/c/abb5146b2d8197d695ea9eaa0847c73e34f00985 (opens in a new tab)
- https://git.kernel.org/stable/c/1c3ebf832d010c08afe1359215d4121cb1ed2de5 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-81768 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-90175)Record last updated .