Description
In the Linux kernel, the following vulnerability has been resolved:
btrfs: fix chunk map leak in btrfs_map_block() after btrfs_chunk_map_num_copies()
Fix a chunk map leak in btrfs_map_block(): if we return early with -EINVAL,
we're not freeing the chunk map that we've just looked up.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Linux | Linux | 6.12 | 6.12.78 |
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 | 6.19.10-1 | — |
| Debian 13 | linux | 6.12.85-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | linux +8 | No fix yet | — |
| Ubuntu 24.04 LTS | linux-riscv +26 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +32 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +28 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gcp +14 | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu Pro Realtime 24.04 LTS | linux-realtime-6.14 +1 | No fix yet | — |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | kernel-64kb +8 | 6.12.0-160000.35.1 | SUSE-SU-2026:22127-1 |
| SLES for SAP 16.0 | kernel-default-base | 6.12.0-160000.35.1.160000.2.16 | SUSE-SU-2026:22127-1 |
| SLES 16.0 | kernel-64kb +8 | 6.12.0-160000.35.1 | SUSE-SU-2026:22127-1, SUSE-SU-2026:22099-1 |
| SLES 16.0 | kernel-default-base | 6.12.0-160000.35.1.160000.2.16 | SUSE-SU-2026:22127-1 |
| SLE Micro 6.2 | kernel-default-base | 6.12.0-160000.35.1.160000.2.16 | SUSE-SU-2026:22112-1 |
| SLE Micro 6.2 | kernel-rt +5 | 6.12.0-160000.35.1 | SUSE-SU-2026:22117-1, SUSE-SU-2026:22112-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 16.0 | kernel-default-base | 6.12.0-160000.35.1.160000.2.16 | openSUSE-SU-2026:20965-1 |
| openSUSE Leap 16.0 | kernel-rt +11 | 6.12.0-160000.35.1 | openSUSE-SU-2026:20965-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | kernel-livepatch-6.18.20-20.229 +1 | 1:1.0-0.amzn2023 | ALAS2023-2026-1596, ALAS2023-2026-1594 |
| Amazon Linux 2023 | perf6.12 +14 | 1:6.12.79-101.147.amzn2023 | ALAS2023-2026-1594 |
| Amazon Linux 2023 | perf6.18 +14 | 1:6.18.20-20.229.amzn2023 | ALAS2023-2026-1596 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 9 | kernel-uek +34 | 6.12.0-204.92.4.2.el10uek | ELSA-2026-50372 |
Advisories 9
- WID-SEC-2026-1454 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 12, 2026
- SUSE-SU-2026:22117-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Jul 9, 2026
- ELSA-2026-50372 Important: Unbreakable Enterprise kernel security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 2, 2026
- openSUSE-SU-2026:20965-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Jun 24, 2026
- SUSE-SU-2026:22127-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Jun 17, 2026
- SUSE-SU-2026:22112-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Jun 17, 2026
- SUSE-SU-2026:22099-1 Security update for the Linux Kernel SUSE / openSUSE Security Updates · Jun 17, 2026
- ALAS2023-2026-1596 Important: kernel6.18 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 16, 2026
- ALAS2023-2026-1594 Important: kernel6.12 security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 16, 2026