Description
Race condition in the handle_to_path function in fs/fhandle.c in the Linux kernel through 3.19.1 allows local users to bypass intended size restrictions and trigger read operations on additional memory locations by changing the handle_bytes value of a file handle during the execution of this function.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | linux | 3.16.7-ckt7-1 | — |
| Debian 13 | linux | 3.16.7-ckt7-1 | — |
| Debian 12 | linux | 3.16.7-ckt7-1 | — |
| Debian 7 | linux | 3.2.65-1+deb7u2 | DSA-3170-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 14.04 LTS | linux | 3.13.0-57.95 | USN-2663-1 |
| Ubuntu 14.04 LTS | linux-lts-utopic | 3.16.0-43.58~14.04.1 | USN-2664-1 |
| Ubuntu 14.04 LTS | linux-lts-vivid | 3.19.0-22.22~14.04.1 | USN-2665-1 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | kernel-docs | 3.0.101-65.3 | SUSE-SU-2015:1678-1 |
| SLES 11 SP4 | kernel-ec2 +7 | 3.0.101-65.1 | SUSE-SU-2015:1678-1 |
| SLES 11 SP3 | kernel-ec2 +8 | 3.0.101-0.47.67.2 | SUSE-SU-2015:1611-1, SUSE-SU-2015:1224-1 |
| SLES 11 SP2 | kernel-ec2 +6 | 3.0.101-0.7.37.1 | SUSE-SU-2015:1478-1 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 11 SP4 | kernel-ec2 +7 | 3.0.101-65.1 | SUSE-SU-2015:1678-1 |
| SLES for SAP 11 SP3 | kernel-ec2 +8 | 3.0.101-0.47.67.2 | SUSE-SU-2015:1611-1 |
| SLE Real Time 11 SP4 | kernel-rt +3 | 3.0.101.rt130-45.1 | SUSE-SU-2015:2167-1 |
| SLE Real Time 11 SP3 | kernel-rt +3 | 3.0.101.rt130-0.33.40.1 | SUSE-SU-2015:1592-1 |
Advisories 10
- USN-2663-1 linux vulnerabilities Ubuntu Security Notices (USN) · Apr 22, 2026
- DSA-3170-1 linux - security update Debian Security (DSA / DLA) · Mar 9, 2026
- USN-2664-1 linux-lts-utopic vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- USN-2665-1 linux-lts-vivid vulnerabilities Ubuntu Security Notices (USN) · Feb 10, 2026
- SUSE-SU-2015:2167-1 Security update for kernel-source-rt SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1478-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1678-1 Security update for kernel-source SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1224-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1611-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026
- SUSE-SU-2015:1592-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · May 2, 2025
References
- DSA-3170 vendor-advisory
- USN-2660-1 vendor-advisory
- [oss-security] 20150129 CVE-2015-1420 - Linux kernel fs/fhandle.c race condition mailing-list
- USN-2665-1 vendor-advisory
- [linux-kernel] 20150128 [PATCH v2] vfs: read file_handle only once in handle_to_path mailing-list
- SUSE-SU-2015:1611 vendor-advisory
- USN-2661-1 vendor-advisory
- openSUSE-SU-2015:1382 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1187534
- SUSE-SU-2015:1478 vendor-advisory
- 72357 vdb-entry
- USN-2667-1 vendor-advisory
- SUSE-SU-2015:1224 vendor-advisory
- SUSE-SU-2015:1592 vendor-advisory