CVE-2014-7826: linux linux_kernel NULL Pointer Dereference
Vulnerability summary
CVE-2014-7826 is a high (CVSS 7.8) NULL Pointer Dereference vulnerability in linux linux_kernel. EPSS estimates a 0.59% chance of exploitation in the next 30 days, higher than 48.1% of scored vulnerabilities. 1 public exploit is recorded.
Public exploit (GitHub, Date unknown)
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 2Timeline
- 10-11-2014PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
kernel/trace/trace_syscalls.c in the Linux kernel through 3.17.2 does not properly handle private syscall numbers during use of the ftrace subsystem, which allows local users to gain privileges or cause a denial of service (invalid pointer dereference) via a crafted application.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated7.8HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.59%
Chance of exploitation in the next 30 days
Percentile
48%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.59% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
1 foundLinux
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu2 products
- linux< 3.13.0-41.70
- linux-lts-utopic< 3.16.0-26.35~14.04.1
Debian1 product
- linux< 3.16.7-ckt2-1
Linux1 product
- linux_kernel≥ 2.6.32, < 3.2.65 | ≥ 3.3, < 3.4.106 | ≥ 3.5, < 3.10.60 | ≥ 3.11, < 3.12.33 | ≥ 3.13, < 3.14.24 | ≥ 3.15, < 3.16.35 | ≥ 3.17, < 3.17.3
Opensuse1 product
- evergreen11.4
Suse1 product
5 vendors · 6 products
References
21 links- www.openwall.com/lists/oss-security/2014/11/06/11Mailing ListX Refsource MLISTPatchThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2015-03/msg00010.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- lists.opensuse.org/opensuse-security-announce/2015-03/msg00025.htmlVendor AdvisoryX Refsource SUSEMailing ListThird Party Advisory
- bugzilla.redhat.com/show_bug.cgi?id=1161565X Refsource CONFIRMIssue TrackingPatchThird Party Advisory
- git.kernel.orgX Refsource CONFIRM
Show all 21 references
- github.com/torvalds/linux/commit/086ba77a6db00ed858ff07451bedee197df868c9X Refsource CONFIRMExploitPatchThird Party Advisory
