What is CVE-2025-68295?

CVE-2025-68295 is a unscored severity Linux kernel vulnerability, affecting Linux kernel versions from 4.4.194 onward and patched in 5.10.247, 5.15.197, 6.1.159 and others. CVE-2025-68295 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2025-68295?

CVE-2025-68295 has a CVSS score of pending NVD analysis out of 10, rated awaiting scoring severity.

Is there a patch available for CVE-2025-68295?

Yes, CVE-2025-68295 has been patched. Fixed versions include 5.10.247, 5.15.197, 6.1.159 and others. If you are running Linux kernel 4.4.194 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2025-68295 actively exploited?

CVE-2025-68295 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2025-68295

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix memory leak in cifs_construct_tcon() When having a multiuser mount with domain= specified and using cifscreds, cifs_set_cifscreds() will end up setting @ctx->domainname, so it needs to be freed before leaving cifs_construct_tcon(). This fixes the following memory leak reported by kmemleak: mount.cifs //srv/share /mnt -o domain=ZELDA,multiuser,... su - testuser cifscreds add -d ZELDA -u testuser ... ls /mnt/1 ... umount /mnt echo scan > /sys/kernel/debug/kmemleak cat /sys/kernel/debug/kmemleak unreferenced object 0xffff8881203c3f08 (size 8): comm "ls", pid 5060, jiffies 4307222943 hex dump (first 8 bytes): 5a 45 4c 44 41 00 cc cc ZELDA... backtrace (crc d109a8cf): __kmalloc_node_track_caller_noprof+0x572/0x710 kstrdup+0x3a/0x70 cifs_sb_tlink+0x1209/0x1770 [cifs] cifs_get_fattr+0xe1/0xf50 [cifs] cifs_get_inode_info+0xb5/0x240 [cifs] cifs_revalidate_dentry_attr+0x2d1/0x470 [cifs] cifs_getattr+0x28e/0x450 [cifs] vfs_getattr_nosec+0x126/0x180 vfs_statx+0xf6/0x220 do_statx+0xab/0x110 __x64_sys_statx+0xd5/0x130 do_syscall_64+0xbb/0x380 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Package Linux Kernel

Published 2025-12-16

Last modified 2026-04-15

Patch available

Yes

Affected versions

Linux kernel versions 4.4.194, 4.9.194, 4.14.146, 4.19.75, 5.2.17, 5.3 and later are affected. Fixed in 5.10.247, 5.15.197, 6.1.159, 6.6.119, 6.12.61, 6.17.11, 6.18 and their respective stable series.

Affected from

≥ 4.4.194 ≥ 4.9.194 ≥ 4.14.146 ≥ 4.19.75 ≥ 5.2.17 ≥ 5.3

Fixed in

✓ 5.10.247 5.10.x ✓ 5.15.197 5.15.x ✓ 6.1.159 6.1.x ✓ 6.6.119 6.6.x ✓ 6.12.61 6.12.x ✓ 6.17.11 6.17.x ✓ 6.18

References

7 total

Showing 5 of 7 references View all on NVD

Frequently asked questions

What is CVE-2025-68295?

CVE-2025-68295 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 4.4.194 onward and has been patched in 5.10.247, 5.15.197, 6.1.159 and others. CVE-2025-68295 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
Is there a patch available for CVE-2025-68295?

Yes. CVE-2025-68295 has been patched. Fixed versions include 5.10.247, 5.15.197, 6.1.159 and others. If you are running Linux kernel 4.4.194 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2025-68295 actively exploited?

No. CVE-2025-68295 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.