Description
An integer overflow in sqfs_resolve_symlink in Das U-Boot before 2025.01-rc1 occurs via a crafted squashfs filesystem with an inode size of 0xffffffff, resulting in a malloc of zero and resultant memory overwrite.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| denx | U-Boot | < 2025.01-rc1 | 2025.01-rc1 |
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 | u-boot | 2025.01-1 | — |
| Debian 13 | u-boot | 2025.01-1 | — |
| Debian 12 | u-boot | 2023.01+dfsg-2+deb12u2 | — |
| Debian 11 | u-boot | 2021.01+dfsg-5+deb11u1 | DLA-4150-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 24.04 LTS | u-boot | 2025.10-0ubuntu0.24.04.2 | USN-8056-1 |
| Ubuntu 24.04 LTS | u-boot-nezha | No fix yet | — |
| Ubuntu 22.04 LTS | u-boot | 2022.01+dfsg-2ubuntu2.7 | USN-8056-1 |
| Ubuntu 22.04 LTS | u-boot-nezha | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | u-boot | No fix yet | — |
| Ubuntu Pro 18.04 LTS | u-boot | No fix yet | — |
| Ubuntu Pro 16.04 LTS | u-boot | No fix yet | — |
Advisories 2
- USN-8056-1 u-boot vulnerabilities Ubuntu Security Notices (USN) · Apr 27, 2026
- DLA-4150-1 u-boot - security update Debian Security (DSA / DLA) · Mar 9, 2026