Description
A memory leak in the ql_alloc_large_buffers() function in drivers/net/ethernet/qlogic/qla3xxx.c in the Linux kernel before 5.3.5 allows local users to cause a denial of service (memory consumption) by triggering pci_dma_mapping_error() failures, aka CID-1acb8f2a7a9f.
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 | 5.3.7-1 | — |
| Debian 13 | linux | 5.3.7-1 | — |
| Debian 12 | linux | 5.3.7-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux-riscv +2 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-gke +3 | No fix yet | — |
| Ubuntu 18.04 LTS | linux | 4.15.0-69.78 | — |
| Ubuntu 18.04 LTS | linux-aws | 4.15.0-1054.56 | — |
| Ubuntu 18.04 LTS | linux-azure | 5.0.0-1025.27~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +1 | 5.0.0-1025.26~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp-edge +2 | No fix yet | — |
| Ubuntu 18.04 LTS | linux-gke-4.15 | 4.15.0-1048.51 | — |
| Ubuntu 18.04 LTS | linux-hwe | 5.0.0-35.38~18.04.1 | — |
| Ubuntu 18.04 LTS | linux-kvm | 4.15.0-1050.50 | — |
| Ubuntu 18.04 LTS | linux-oem | 4.15.0-1063.72 | — |
| Ubuntu 18.04 LTS | linux-oem-osp1 | 5.0.0-1027.31 | — |
| Ubuntu 18.04 LTS | linux-oracle | 4.15.0-1029.32 | — |
| Ubuntu 18.04 LTS | linux-raspi2 | 4.15.0-1050.54 | — |
| Ubuntu 18.04 LTS | linux-snapdragon | 4.15.0-1067.74 | — |
| Ubuntu 16.04 LTS | linux | 4.4.0-168.197 | — |
| Ubuntu 16.04 LTS | linux-aws | 4.4.0-1098.109 | — |
| Ubuntu 16.04 LTS | linux-aws-hwe | 4.15.0-1054.56~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-azure | 4.15.0-1063.68 | — |
| Ubuntu 16.04 LTS | linux-gcp | 4.15.0-1049.52 | — |
| Ubuntu 16.04 LTS | linux-hwe | 4.15.0-69.78~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
| Ubuntu 16.04 LTS | linux-kvm | 4.4.0-1062.69 | — |
| Ubuntu 16.04 LTS | linux-oracle | 4.15.0-1029.32~16.04.1 | — |
| Ubuntu 16.04 LTS | linux-raspi2 | 4.4.0-1125.134 | — |
| Ubuntu 16.04 LTS | linux-snapdragon | 4.4.0-1129.137 | — |
Show 5 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro FIPS 18.04 LTS | linux-aws-fips +2 | No fix yet | — |
| Ubuntu Pro FIPS 16.04 LTS | linux-fips | No fix yet | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-aws-fips | 4.15.0-2018.18 | — |
| Ubuntu Pro FIPS-updates 18.04 LTS | linux-azure-fips | 4.15.0-2006.7 | — |
| Ubuntu Pro FIPS-updates 16.04 LTS | linux-fips | 4.4.0-1025.30 | — |
| Ubuntu Pro 14.04 LTS | linux | No fix yet | — |
| Ubuntu Pro 14.04 LTS | linux-aws | 4.4.0-1058.62 | — |
| Ubuntu Pro 14.04 LTS | linux-azure | 4.15.0-1063.68~14.04.1 | — |
| Ubuntu Pro 14.04 LTS | linux-lts-xenial | 4.4.0-168.197~14.04.1 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 7 | dtrace-modules-3.8.13-118.44.1.el6uek | 0.4.5-3.el6 | ELSA-2020-5644 |
| Oracle Linux 7 | dtrace-modules-3.8.13-118.44.1.el7uek | 0.4.5-3.el7 | ELSA-2020-5644 |
| Oracle Linux 7 | kernel-uek +5 | 3.8.13-118.44.1.el7uek | ELSA-2020-5649, ELSA-2020-5644, ELSA-2020-5642 |
| Oracle Linux 7 | perf +5 | 4.14.35-1902.301.1.el7uek | ELSA-2020-5649 |
Advisories 4
- WID-SEC-2022-0769 Linux Kernel: Mehrere Schwachstellen BSI CERT-Bund (WID) · Dec 9, 2025
- ELSA-2020-5649 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 13, 2020
- ELSA-2020-5644 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 10, 2020
- ELSA-2020-5642 Important: Unbreakable Enterprise kernel security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Apr 8, 2020