CVE-2023-52619
In the Linux kernel, the following vulnerability has been resolved:
pstore/ram: Fix crash when setting number of cpus to an odd number
When the number of cpu cores is adjusted to 7 or other odd numbers, the zone size will become an odd number. The address of the zone will become: addr of zone0 = BASE addr of zone1 = BASE + zone_size addr of zone2 = BASE + zone_size*2 ... The address of zone1/3/5/7 will be mapped to non-alignment va. Eventually crashes will occur when accessing these va.
So, use ALIGN_DOWN() to make sure the zone size is even to avoid this bug.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 5.11 | 5.15.149 |
| linux / linux_kernel | 5.5 | 5.10.210 |
| linux / linux_kernel | 6.7 | 6.7.4 |
| linux / linux_kernel | 6.2 | 6.6.16 |
| linux / linux_kernel | 5.16 | 6.1.77 |
| linux / linux_kernel | 4.20 | 5.4.269 |
| linux / linux_kernel | - | 4.19.307 |
| debian / debian_linux | 10.0 | 10.0.x |
- https://git.kernel.org/stable/c/0593cfd321df9001142a9d2c58d4144917dff7ee
- https://git.kernel.org/stable/c/2a37905d47bffec61e95d99f0c1cc5dc6377956c
- https://git.kernel.org/stable/c/75b0f71b26b3ad833c5c0670109c0af6e021e86a
- https://git.kernel.org/stable/c/8b69c30f4e8b69131d92096cb296dc1f217101e4
- https://git.kernel.org/stable/c/a63e48cd835c34c38ef671d344cc029b1ea5bf10
- https://git.kernel.org/stable/c/cd40e43f870cf21726b22487a95ed223790b3542
- https://git.kernel.org/stable/c/d49270a04623ce3c0afddbf3e984cb245aa48e9c
- https://git.kernel.org/stable/c/e9f6ac50890104fdf8194f2865680689239d30fb
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html
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