Description
In the Linux kernel, the following vulnerability has been resolved: nfc: nci: free skb on nci_transceive early error paths nci_transceive() takes ownership of the skb passed by the caller, but the -EPROTO, -EINVAL, and -EBUSY error paths return without freeing it. Due to issues clearing NCI_DATA_EXCHANGE fixed by subsequent changes the nci/nci_dev selftest hits the error path occasionally in NIPA, and kmemleak detects leaks: unreferenced object 0xff11000015ce6a40 (size 640): comm "nci_dev", pid 3954, jiffies 4295441246 hex dump (first 32 bytes): 6b 6b 6b 6b 00 a4 00 0c 02 e1 03 6b 6b 6b 6b 6b kkkk.......kkkkk 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b 6b kkkkkkkkkkkkkkkk backtrace (crc 7c40cc2a): kmem_cache_alloc_node_noprof+0x492/0x630 __alloc_skb+0x11e/0x5f0 alloc_skb_with_frags+0xc6/0x8f0 sock_alloc_send_pskb+0x326/0x3f0 nfc_alloc_send_skb+0x94/0x1d0 rawsock_sendmsg+0x162/0x4c0 do_syscall_64+0x117/0xfc0
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 < b367cb44d919f35b07cd56feffa15e68cd9f53f9affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 6d898f943766440cf766d30364e715111c3563b5affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 33f6b8a96dda045789796c3bcb451c74ac158039affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 3245801d44a44c090acefe19a12d22d12cac45c5affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 9d448bbab724b94d6c561e1f314656f5b88a7cb3affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 54f7f0eaafa56b5994cdb5c7967946922c2e1d22affected6a2968aaf50c7a22fced77a5e24aa636281efca8 to < 7bd4b0c4779f978a6528c9b7937d2ca18e936e2caffected
Linux Linux
Default version status: affected
3.2affected0 to < 3.2unaffected5.10.253 to ≤ 5.10.*unaffected5.15.203 to ≤ 5.15.*unaffected6.1.167 to ≤ 6.1.*unaffected6.6.130 to ≤ 6.6.*unaffected6.12.77 to ≤ 6.12.*unaffected6.18.17 to ≤ 6.18.*unaffected6.19.7 to ≤ 6.19.*unaffected7.0 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/b367cb44d919f35b07cd56feffa15e68cd9f53f9 ↗
- https://git.kernel.org/stable/c/6d898f943766440cf766d30364e715111c3563b5 ↗
- https://git.kernel.org/stable/c/33f6b8a96dda045789796c3bcb451c74ac158039 ↗
- https://git.kernel.org/stable/c/dcbcccfc5195c9caaa4bb8d31f23c345f00a9e89 ↗
- https://git.kernel.org/stable/c/3245801d44a44c090acefe19a12d22d12cac45c5 ↗
- https://git.kernel.org/stable/c/9d448bbab724b94d6c561e1f314656f5b88a7cb3 ↗
- https://git.kernel.org/stable/c/54f7f0eaafa56b5994cdb5c7967946922c2e1d22 ↗
- https://git.kernel.org/stable/c/7bd4b0c4779f978a6528c9b7937d2ca18e936e2c ↗
- https://cert-portal.siemens.com/productcert/html/ssa-784472.html ↗