{"id":"CVE-2022-49094","summary":"net/tls: fix slab-out-of-bounds bug in decrypt_internal","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nnet/tls: fix slab-out-of-bounds bug in decrypt_internal\n\nThe memory size of tls_ctx-\u003erx.iv for AES128-CCM is 12 setting in\ntls_set_sw_offload(). The return value of crypto_aead_ivsize()\nfor \"ccm(aes)\" is 16. So memcpy() require 16 bytes from 12 bytes\nmemory space will trigger slab-out-of-bounds bug as following:\n\n==================================================================\nBUG: KASAN: slab-out-of-bounds in decrypt_internal+0x385/0xc40 [tls]\nRead of size 16 at addr ffff888114e84e60 by task tls/10911\n\nCall Trace:\n \u003cTASK\u003e\n dump_stack_lvl+0x34/0x44\n print_report.cold+0x5e/0x5db\n ? decrypt_internal+0x385/0xc40 [tls]\n kasan_report+0xab/0x120\n ? decrypt_internal+0x385/0xc40 [tls]\n kasan_check_range+0xf9/0x1e0\n memcpy+0x20/0x60\n decrypt_internal+0x385/0xc40 [tls]\n ? tls_get_rec+0x2e0/0x2e0 [tls]\n ? process_rx_list+0x1a5/0x420 [tls]\n ? tls_setup_from_iter.constprop.0+0x2e0/0x2e0 [tls]\n decrypt_skb_update+0x9d/0x400 [tls]\n tls_sw_recvmsg+0x3c8/0xb50 [tls]\n\nAllocated by task 10911:\n kasan_save_stack+0x1e/0x40\n __kasan_kmalloc+0x81/0xa0\n tls_set_sw_offload+0x2eb/0xa20 [tls]\n tls_setsockopt+0x68c/0x700 [tls]\n __sys_setsockopt+0xfe/0x1b0\n\nReplace the crypto_aead_ivsize() with prot-\u003eiv_size + prot-\u003esalt_size\nwhen memcpy() iv value in TLS_1_3_VERSION scenario.","modified":"2026-08-12T03:51:39.522663336Z","published":"2025-02-26T01:54:48.163Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49094.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/2304660ab6c425df64d95301b601424c6a50f28b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/29be1816cbab9a0dc6243120939fd10a92753756"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2b7d14c105dd8f6412eda5a91e1e6154653731e3"},{"type":"WEB","url":"https://git.kernel.org/stable/c/589154d0f18945f41d138a5b4e49e518d294474b"},{"type":"WEB","url":"https://git.kernel.org/stable/c/6e2f1b033b17dedda51d465861b69e58317d6343"},{"type":"WEB","url":"https://git.kernel.org/stable/c/9381fe8c849cfbe50245ac01fc077554f6eaa0e2"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/49xxx/CVE-2022-49094.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-49094"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"f295b3ae9f5927e084bd5decdff82390e3471801"},{"fixed":"2b7d14c105dd8f6412eda5a91e1e6154653731e3"},{"fixed":"589154d0f18945f41d138a5b4e49e518d294474b"},{"fixed":"6e2f1b033b17dedda51d465861b69e58317d6343"},{"fixed":"29be1816cbab9a0dc6243120939fd10a92753756"},{"fixed":"2304660ab6c425df64d95301b601424c6a50f28b"},{"fixed":"9381fe8c849cfbe50245ac01fc077554f6eaa0e2"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49094.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.2.0"},{"fixed":"5.4.189"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.5.0"},{"fixed":"5.10.111"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.11.0"},{"fixed":"5.15.34"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.16.0"},{"fixed":"5.16.20"}]},{"type":"ECOSYSTEM","events":[{"introduced":"5.17.0"},{"fixed":"5.17.3"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-49094.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}