Description
A double-free can happen in idr_remove_all() in lib/idr.c in the Linux kernel 2.6 branch. An unprivileged local attacker can use this flaw for a privilege escalation or for a system crash and a denial of service (DoS).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| The Linux Foundation | kernel | 2.6.32 | — |
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 | 3.2.41-1 | — |
| Debian 13 | linux | 3.2.41-1 | — |
| Debian 12 | linux | 3.2.41-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 14.04 LTS | linux +3 | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6 | perf +15 | 2.6.32-754.15.3.el6 | RHSA-2019:1488 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 6.6 AUS | perf +9 | 2.6.32-504.79.3.el6 | RHSA-2019:1489 |
| RHEL 6.5 AUS | perf +9 | 2.6.32-431.95.3.el6 | RHSA-2019:1490 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 11 SP4 | kernel-ec2 +8 | 3.0.101-108.98.1 | SUSE-SU-2019:14127-1 |
Advisories 4
- RHSA-2019:1490 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:1488 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- RHSA-2019:1489 Red Hat Security Advisory: kernel security and bug fix update Red Hat Security Advisories (RHSA) · Jun 29, 2026
- SUSE-SU-2019:14127-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Feb 4, 2026