CVE-2022-49094net/tls: fix slab-out-of-bounds bug in decrypt_internal
Updated under an hour ago ()
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In the Linux kernel, the following vulnerability has been resolved: net/tls: fix slab-out-of-bounds bug in decrypt_internal The memory size of tls_ctx->rx.iv for AES128-CCM is 12 setting in tls_set_sw_offload(). The return value of crypto_aead_ivsize() for "ccm(aes)" is 16. So memcpy() require 16 bytes from 12 bytes memory space will trigger slab-out-of-bounds bug as following: ================================================================== BUG: KASAN: slab-out-of-bounds in decrypt_internal+0x385/0xc40 [tls] Read of size 16 at addr ffff888114e84e60 by task tls/10911 Call Trace: <TASK> dump_stack_lvl+0x34/0x44 print_report.cold+0x5e/0x5db ? decrypt_internal+0x385/0xc40 [tls] kasan_report+0xab/0x120 ? decrypt_internal+0x385/0xc40 [tls] kasan_check_range+0xf9/0x1e0 memcpy+0x20/0x60 decrypt_internal+0x385/0xc40 [tls] ? tls_get_rec+0x2e0/0x2e0 [tls] ? process_rx_list+0x1a5/0x420 [tls] ? tls_setup_from_iter.constprop.0+0x2e0/0x2e0 [tls] decrypt_skb_update+0x9d/0x400 [tls] tls_sw_recvmsg+0x3c8/0xb50 [tls] Allocated by task 10911: kasan_save_stack+0x1e/0x40 __kasan_kmalloc+0x81/0xa0 tls_set_sw_offload+0x2eb/0xa20 [tls] tls_setsockopt+0x68c/0x700 [tls] __sys_setsockopt+0xfe/0x1b0 Replace the crypto_aead_ivsize() with prot->iv_size + prot->salt_size when memcpy() iv value in TLS_1_3_VERSION scenario.
- CVSS
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Modified
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 15, 2026
Affected products
Linux Linux linux:linux (from the name) | from f295b3ae9f5927e084bd5decdff82390e3471801 before 2b7d14c105dd8f6412eda5a91e1e6154653731e3; from f295b3ae9f5927e084bd5decdff82390e3471801 before 589154d0f18945f41d138a5b4e49e518d294474b; from f295b3ae9f5927e084bd5decdff82390e3471801 before 6e2f1b033b17dedda51d465861b69e58317d6343; from f295b3ae9f5927e084bd5decdff82390e3471801 before 29be1816cbab9a0dc6243120939fd10a92753756; from f295b3ae9f5927e084bd5decdff82390e3471801 before 2304660ab6c425df64d95301b601424c6a50f28b; from f295b3ae9f5927e084bd5decdff82390e3471801 before 9381fe8c849cfbe50245ac01fc077554f6eaa0e2 | CNA record |
linux linux_kernel linux:linux_kernel | from 5.2 before 5.4.189; from 5.5 before 5.10.111; from 5.11 before 5.15.34; from 5.16 before 5.16.20; from 5.17 before 5.17.3; 5.18 | NVD |
References
- https://git.kernel.org/stable/c/2b7d14c105dd8f6412eda5a91e1e6154653731e3patch
- https://git.kernel.org/stable/c/589154d0f18945f41d138a5b4e49e518d294474bpatch
- https://git.kernel.org/stable/c/6e2f1b033b17dedda51d465861b69e58317d6343patch
- https://git.kernel.org/stable/c/29be1816cbab9a0dc6243120939fd10a92753756patch
- https://git.kernel.org/stable/c/2304660ab6c425df64d95301b601424c6a50f28bpatch
- https://git.kernel.org/stable/c/9381fe8c849cfbe50245ac01fc077554f6eaa0e2patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.