Medium · published May 30, 2024
In the Linux kernel, the following vulnerability has been resolved:
ipv6: Fix potential uninit-value access in __ip6_make_skb()
As it was done in commit fc1092f51567 ("ipv4: Fix uninit-value access in
__ip_make_skb()") for IPv4, check FLOWI_FLAG_KNOWN_NH on fl6->flowi6_flags
instead of testing HDRINCL on the socket to avoid a race condition which
causes uninit-value access.
| Product | Versions | Fixed in |
|---|---|---|
| linux/linux_kernel | ≥ 4.14.313, < 4.15 | 4.15 |
| linux/linux_kernel | ≥ 4.19.281, < 4.20 | 4.20 |
| linux/linux_kernel | ≥ 5.4.241, < 5.5 | 5.5 |
| linux/linux_kernel | ≥ 5.10.178, < 5.11 | 5.11 |
| linux/linux_kernel | ≥ 5.15.107, < 5.16 | 5.16 |
| linux/linux_kernel | ≥ 6.1.24, < 6.2 | 6.2 |
| linux/linux_kernel | ≥ 6.2.11, < 6.6.31 | 6.6.31 |
| linux/linux_kernel | ≥ 6.7, < 6.8.10 | 6.8.10 |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |
| linux/linux_kernel | all versions | — |