Description
A flaw out of bounds memory write in the Linux kernel UDF file system functionality was found in the way user triggers some file operation which triggers udf_write_fi(). A local user could use this flaw to crash the system or potentially
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | Kernel | Linux kernel 5.18-rc7 | — |
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 | 5.17.11-1 | — |
| Debian 13 | linux | 5.17.11-1 | — |
| Debian 12 | linux | 5.17.11-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | linux-raspi-realtime | No fix yet | — |
| Ubuntu 22.04 LTS | linux | 5.15.0-47.51 | USN-5594-1 |
| Ubuntu 22.04 LTS | linux-aws | 5.15.0-1019.23 | USN-5594-1 |
| Ubuntu 22.04 LTS | linux-azure | 5.15.0-1019.24 | USN-5594-1 |
| Ubuntu 22.04 LTS | linux-gcp | 5.15.0-1017.23 | USN-5594-1 |
| Ubuntu 22.04 LTS | linux-gke | 5.15.0-1015.18 | USN-5594-1 |
| Ubuntu 22.04 LTS | linux-gkeop | 5.15.0-1002.4 | USN-5594-1 |
| Ubuntu 22.04 LTS | linux-ibm | 5.15.0-1013.15 | USN-5594-1 |
| Ubuntu 22.04 LTS | linux-intel-iotg | 5.15.0-1013.17 | USN-5616-1 |
| Ubuntu 22.04 LTS | linux-kvm | 5.15.0-1017.21 | USN-5594-1 |
| Ubuntu 22.04 LTS | linux-lowlatency | 5.15.0-47.53 | USN-5594-1 |
| Ubuntu 22.04 LTS | linux-nvidia | 5.15.0-1007.7 | — |
| Ubuntu 22.04 LTS | linux-oem-5.17 | 5.17.0-1011.12 | — |
| Ubuntu 22.04 LTS | linux-oem-6.0 +2 | No fix yet | — |
| Ubuntu 22.04 LTS | linux-oracle | 5.15.0-1017.22 | USN-5599-1 |
| Ubuntu 22.04 LTS | linux-raspi | 5.15.0-1014.16 | USN-5602-1 |
| Ubuntu 22.04 LTS | linux-riscv | 5.15.0-1018.21 | — |
| Ubuntu 20.04 LTS | linux-aws-5.15 | 5.15.0-1019.23~20.04.1 | USN-5594-1 |
| Ubuntu 20.04 LTS | linux-azure-5.15 | 5.15.0-1019.24~20.04.1 | USN-5594-1 |
| Ubuntu 20.04 LTS | linux-gcp-5.15 | 5.15.0-1017.23~20.04.2 | USN-5594-1 |
| Ubuntu 20.04 LTS | linux-gke-5.15 | 5.15.0-1015.18~20.04.1 | USN-5594-1 |
| Ubuntu 20.04 LTS | linux-hwe-5.15 +1 | 5.15.0-48.54~20.04.1 | USN-5623-1 |
| Ubuntu 20.04 LTS | linux-intel-iotg-5.15 | 5.15.0-1015.20~20.04.2 | — |
| Ubuntu 20.04 LTS | linux-oracle-5.15 | 5.15.0-1017.22~20.04.1 | — |
| Ubuntu 20.04 LTS | linux-riscv +22 | No fix yet | — |
| Ubuntu 20.04 LTS | linux-riscv-5.15 | 5.15.0-1018.21~20.04.1 | — |
| Ubuntu 18.04 LTS | linux-gcp +11 | No fix yet | — |
| Ubuntu 16.04 LTS | linux-hwe-edge | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro Realtime 22.04 LTS | linux-realtime | 5.15.0-1020.20 | — |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 2 (CBL-Mariner) | kernel | 5.15.92.1-1 | — |
Advisories 5
- USN-5594-1 linux, linux-aws, linux-aws-5.15, linux-azure, linux-azure-5.15, linux-gcp, linux-gcp-5.15, linux-gke, linux-gke-5.15, linux-gkeop, linux-ibm, linux-kvm, linux-lowlatency vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5599-1 linux-oracle vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5602-1 linux-raspi vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5616-1 linux-intel-iotg vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026
- USN-5623-1 linux-hwe-5.15, linux-lowlatency-hwe-5.15 vulnerabilities Ubuntu Security Notices (USN) · Sep 14, 2026