Description
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free rx_data_reassembly skb on NCI device cleanup rx_data_reassembly skb is stored during NCI data exchange for processing fragmented packets. It is dropped only when the last fragment is processed or when an NTF packet with NCI_OP_RF_DEACTIVATE_NTF opcode is received. However, the NCI device may be deallocated before that which leads to skb leak. As by design the rx_data_reassembly skb is bound to the NCI device and nothing prevents the device to be freed before the skb is processed in some way and cleaned, free it on the NCI device cleanup. Found by Linux Verification Center (linuxtesting.org) with Syzkaller.
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
6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 7e9a8498658b398bf11b8e388005fa54e40aed81affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 71349abe3aba7fedcab5b3fcd7aa82371fb5ccbfaffected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 2f6d16f0520d6505241629ee2f5c131b547d5f9daffected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 471c9ede8061357b43a116fa692e70d91941ac23affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 5c0c5ffaed73cbae6c317374dc32ba6cacc60895affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 16d3f507b0fa70453dc54550df093d6e9ac630c1affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < a3d90fb5c23f29ba59c04005ae76c5228cef2be9affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < bfb007aebe6bff451f7f3a4be19f4f286d0d5d9caffected
Linux Linux
Default version status: affected
3.2affected0 to < 3.2unaffected4.19.307 to ≤ 4.19.*unaffected5.4.269 to ≤ 5.4.*unaffected5.10.210 to ≤ 5.10.*unaffected5.15.149 to ≤ 5.15.*unaffected6.1.79 to ≤ 6.1.*unaffected6.6.18 to ≤ 6.6.*unaffected6.7.6 to ≤ 6.7.*unaffected6.8 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/7e9a8498658b398bf11b8e388005fa54e40aed81 ↗
- https://git.kernel.org/stable/c/71349abe3aba7fedcab5b3fcd7aa82371fb5ccbf ↗
- https://git.kernel.org/stable/c/2f6d16f0520d6505241629ee2f5c131b547d5f9d ↗
- https://git.kernel.org/stable/c/471c9ede8061357b43a116fa692e70d91941ac23 ↗
- https://git.kernel.org/stable/c/5c0c5ffaed73cbae6c317374dc32ba6cacc60895 ↗
- https://git.kernel.org/stable/c/16d3f507b0fa70453dc54550df093d6e9ac630c1 ↗
- https://git.kernel.org/stable/c/a3d90fb5c23f29ba59c04005ae76c5228cef2be9 ↗
- https://git.kernel.org/stable/c/bfb007aebe6bff451f7f3a4be19f4f286d0d5d9c ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html ↗
- https://lists.debian.org/debian-lts-announce/2024/06/msg00020.html ↗