# CVE-2022-49094: linux: In the Linux kernel, the following vulnerability has been resolved:  net/tls: fix slab-out-of-bounds bug in decrypt_i...

CVE-2022-49094 is fixed in linux on 1 platform, first by DEBIAN-CVE-2022-49094, released February 26, 2025. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2022-49094
- Priority: High
- CVSS: 7.1 (high)
- EPSS: 0.0067
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2025

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 12.15 (bookworm) | 5.17.3-1 | [DEBIAN-CVE-2022-49094](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49094.md) | Feb 26, 2025 |
| Linux | linux Debian 13.5 (trixie) | 5.17.3-1 | [DEBIAN-CVE-2022-49094](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49094.md) | Feb 26, 2025 |
| Linux | linux Debian 14 | 5.17.3-1 | [DEBIAN-CVE-2022-49094](https://patchblox.com/security/data/fix/linux/debian-cve-2022-49094.md) | Feb 26, 2025 |

---

Data as of 2026-11-08T19:12:23Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.