CVE-2026-90175smb: server: fix leak of ksmbd_ipc_login_request_ext() returned buffer
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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
- CVSS
- Not yet scored
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Received
- Record last updated
- Oct 19, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | 8a3cd890fd2a7d016a821a1c9dfd8a84d45ad320 builds before 4d6fe49fa3e7fbd779c761518e6572e340233c9b; from a77e0e02af1c2db5fc040511aa78a58a52e116ab before c9f2872e91b9fe99c1d0ba768906f7aeb48c8517; from a77e0e02af1c2db5fc040511aa78a58a52e116ab before 7a98c3b903b10c4d6176948254012b5ca24b071b; from a77e0e02af1c2db5fc040511aa78a58a52e116ab before abb5146b2d8197d695ea9eaa0847c73e34f00985; from a77e0e02af1c2db5fc040511aa78a58a52e116ab before 1c3ebf832d010c08afe1359215d4121cb1ed2de5; from 6.6.141 before 6.6.157 | CNA record |
References
- https://git.kernel.org/stable/c/4d6fe49fa3e7fbd779c761518e6572e340233c9b
- https://git.kernel.org/stable/c/c9f2872e91b9fe99c1d0ba768906f7aeb48c8517
- https://git.kernel.org/stable/c/7a98c3b903b10c4d6176948254012b5ca24b071b
- https://git.kernel.org/stable/c/abb5146b2d8197d695ea9eaa0847c73e34f00985
- https://git.kernel.org/stable/c/1c3ebf832d010c08afe1359215d4121cb1ed2de5
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.