Description
In the Linux kernel, the following vulnerability has been resolved: atm: clip: Fix memory leak of struct clip_vcc. ioctl(ATMARP_MKIP) allocates struct clip_vcc and set it to vcc->user_back. The code assumes that vcc_destroy_socket() passes NULL skb to vcc->push() when the socket is close()d, and then clip_push() frees clip_vcc. However, ioctl(ATMARPD_CTRL) sets NULL to vcc->push() in atm_init_atmarp(), resulting in memory leak. Let's serialise two ioctl() by lock_sock() and check vcc->push() in atm_init_atmarp() to prevent memleak.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 2fb37ab3226606cbfc9b2b6f9e301b0b735734c5affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 9e4dbeee56f614e3f1e166e5d0655a999ea185efaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 1c075e88d5859a2c6b43b27e0e46fb281cef8039affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 0c17ff462d98c997d707ee5cf4e4a9b1b52b9d90affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 1fb9fb5a4b5cec2d56e26525ef8c519de858fa60affected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 9f771816f14da6d6157a8c30069091abf6b566fbaffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < cb2e4a2f8f268d8fba6662f663a2e57846f14a8daffected1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to < 62dba28275a9a3104d4e33595c7b3328d4032d8daffected
Linux Linux
Default version status: affected
2.6.12affected0 to < 2.6.12unaffected5.4.296 to ≤ 5.4.*unaffected5.10.240 to ≤ 5.10.*unaffected5.15.189 to ≤ 5.15.*unaffected6.1.146 to ≤ 6.1.*unaffected6.6.99 to ≤ 6.6.*unaffected6.12.39 to ≤ 6.12.*unaffected6.15.7 to ≤ 6.15.*unaffected6.16 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/2fb37ab3226606cbfc9b2b6f9e301b0b735734c5 ↗
- https://git.kernel.org/stable/c/9e4dbeee56f614e3f1e166e5d0655a999ea185ef ↗
- https://git.kernel.org/stable/c/1c075e88d5859a2c6b43b27e0e46fb281cef8039 ↗
- https://git.kernel.org/stable/c/0c17ff462d98c997d707ee5cf4e4a9b1b52b9d90 ↗
- https://git.kernel.org/stable/c/1fb9fb5a4b5cec2d56e26525ef8c519de858fa60 ↗
- https://git.kernel.org/stable/c/9f771816f14da6d6157a8c30069091abf6b566fb ↗
- https://git.kernel.org/stable/c/cb2e4a2f8f268d8fba6662f663a2e57846f14a8d ↗
- https://git.kernel.org/stable/c/62dba28275a9a3104d4e33595c7b3328d4032d8d ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗