High · published September 15, 2025
In the Linux kernel, the following vulnerability has been resolved:
jbd2: fix potential use-after-free in jbd2_fc_wait_bufs
In 'jbd2_fc_wait_bufs' use 'bh' after put buffer head reference count
which may lead to use-after-free.
So judge buffer if uptodate before put buffer head reference count.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | < 5.10.150 | 5.10.150 |
| linux/linux_kernel | ≥ 5.11, < 5.15.75 | 5.15.75 |
| linux/linux_kernel | ≥ 5.16, < 5.19.17 | 5.19.17 |
| linux/linux_kernel | ≥ 6.0, < 6.0.3 | 6.0.3 |