Description (CNA)
U-Boot before 2026.10-rc5 contains a use-after-free vulnerability in the httpc_recv_cb() function within the lwIP wget implementation. When HTTP data storage fails, the callback frees the connection PCB but returns ERR_BUF instead of ERR_ABRT, causing the TCP input path to access released memory and crash the bootloader.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| u-boot / u-boot | affected 0 before 2026.10-rc5 |
CWE
CWE-416
References
- https://github.com/u-boot/u-boot/commit/2d94618a58aeb7630f18eee33419ce48d0fd3616
- https://github.com/u-boot/u-boot/blob/v2026.07/net/lwip/wget.c#L194
- https://github.com/u-boot/u-boot
- https://www.vulncheck.com/advisories/u-boot-before-2026.10-rc5-use-after-free-in-lwip-wget-receive-callback
ADP enrichment
No English description supplied.
No references supplied.