CVE-2025-68295: linux

CVSS: UnknownDeferred
AliasesUBUNTU-CVE-2025-68295DEBIAN-CVE-2025-68295
Published 16-12-2025Last modified 16-06-2026
Open JSON

Vulnerability summary

CVE-2025-68295 is a vulnerability in linux with no CVSS score yet. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.1% of scored vulnerabilities.

Overall risk
0/100
0100
Minimal · default modelHow is this calculated?
CVSS score
Not scored
010
No CVSS score recorded
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 40 · Related 37
DLA-4436-1MGASA-2026-0017MGASA-2026-0018OPENSUSE-SU-2026:20416-1SUSE-SU-2026:0962-1SUSE-SU-2026:1078-1

Timeline

  1. 16-12-2025
    PublishedVulnerability first disclosed.
  2. 16-06-2026
    Last modifiedVulnerability information updated.

Description

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

CVSS metrics

Risk metrics not yet published.

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Ubuntu156 products
  • linuxAll versions (No fix recorded) | < 5.15.0-173.183 | < 6.8.0-106.106 | < 6.17.0-19.19
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1103.110 | < 6.8.0-1050.53 | < 6.17.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.159-1 | < 6.12.63-1 | < 6.17.11-1
Linux1 product
  • linux≥ f2aee329a68f5a907bcff11a109dfe17c0b41aeb, < ff8f9bd1c46ee02d5558293915d42e82646d5ee9 | ≥ f2aee329a68f5a907bcff11a109dfe17c0b41aeb, < d146e96fef876492979658dce644305de35878d4 | ≥ f2aee329a68f5a907bcff11a109dfe17c0b41aeb, < 3dd546e867e94c2f954bca45a961b6104ba708b6 | ≥ f2aee329a68f5a907bcff11a109dfe17c0b41aeb, < f62ffdfb431bdfa4b6d24233b7fd830eca0b801e | ≥ f2aee329a68f5a907bcff11a109dfe17c0b41aeb, < f15288c137d960836277d0e3ecc62de68e52f00f | ≥ f2aee329a68f5a907bcff11a109dfe17c0b41aeb, < a67e91d5f446e455dd9201cdd6e865f7078d251d | ≥ f2aee329a68f5a907bcff11a109dfe17c0b41aeb, < 3184b6a5a24ec9ee74087b2a550476f386df7dc2 | 1456d3cea31114137fabf1110d20a2e2c6d6060f | 16764d7486d02b1699ae16e91d7a577602398b17 | 904847402bd74a28164bd4d8da082d1eace7c190 | 325fa2a6729b74b2806b31725940cb54658515e5 | 8db988a982908b7bff76e095000adabf9c29698b | ≥ 4.4.194, < 4.5 | ≥ 4.9.194, < 4.10 | ≥ 4.14.146, < 4.15 | ≥ 4.19.75, < 4.20 | ≥ 5.2.17, < 5.3 | 5.3

3 vendors · 158 products

References

38 links
Show all 38 references