CVE-2024-56650

HIGH EPSS 17.0%
Published Dec 27, 20241y ago · Modified Jun 17, 20261w ago
7.1 CVSS 3.1
High
Find Similar
Published Dec 27, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: x_tables: fix LED ID check in led_tg_check() Syzbot has reported the following BUG detected by KASAN: BUG: KASAN: slab-out-of-bounds in strlen+0x58/0x70 Read of size 1 at addr ffff8881022da0c8 by task repro/5879 ... Call Trace: <TASK> dump_stack_lvl+0x241/0x360 ? __pfx_dump_stack_lvl+0x10/0x10 ? __pfx__printk+0x10/0x10 ? _printk+0xd5/0x120 ? __virt_addr_valid+0x183/0x530 ? __virt_addr_valid+0x183/0x530 print_report+0x169/0x550 ? __virt_addr_valid+0x183/0x530 ? __virt_addr_valid+0x183/0x530 ? __virt_addr_valid+0x45f/0x530 ? __phys_addr+0xba/0x170 ? strlen+0x58/0x70 kasan_report+0x143/0x180 ? strlen+0x58/0x70 strlen+0x58/0x70 kstrdup+0x20/0x80 led_tg_check+0x18b/0x3c0 xt_check_target+0x3bb/0xa40 ? __pfx_xt_check_target+0x10/0x10 ? stack_depot_save_flags+0x6e4/0x830 ? nft_target_init+0x174/0xc30 nft_target_init+0x82d/0xc30 ? __pfx_nft_target_init+0x10/0x10 ? nf_tables_newrule+0x1609/0x2980 ? nf_tables_newrule+0x1609/0x2980 ? rcu_is_watching+0x15/0xb0 ? nf_tables_newrule+0x1609/0x2980 ? nf_tables_newrule+0x1609/0x2980 ? __kmalloc_noprof+0x21a/0x400 nf_tables_newrule+0x1860/0x2980 ? __pfx_nf_tables_newrule+0x10/0x10 ? __nla_parse+0x40/0x60 nfnetlink_rcv+0x14e5/0x2ab0 ? __pfx_validate_chain+0x10/0x10 ? __pfx_nfnetlink_rcv+0x10/0x10 ? __lock_acquire+0x1384/0x2050 ? netlink_deliver_tap+0x2e/0x1b0 ? __pfx_lock_release+0x10/0x10 ? netlink_deliver_tap+0x2e/0x1b0 netlink_unicast+0x7f8/0x990 ? __pfx_netlink_unicast+0x10/0x10 ? __virt_addr_valid+0x183/0x530 ? __check_object_size+0x48e/0x900 netlink_sendmsg+0x8e4/0xcb0 ? __pfx_netlink_sendmsg+0x10/0x10 ? aa_sock_msg_perm+0x91/0x160 ? __pfx_netlink_sendmsg+0x10/0x10 __sock_sendmsg+0x223/0x270 ____sys_sendmsg+0x52a/0x7e0 ? __pfx_____sys_sendmsg+0x10/0x10 __sys_sendmsg+0x292/0x380 ? __pfx___sys_sendmsg+0x10/0x10 ? lockdep_hardirqs_on_prepare+0x43d/0x780 ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10 ? exc_page_fault+0x590/0x8c0 ? do_syscall_64+0xb6/0x230 do_syscall_64+0xf3/0x230 entry_SYSCALL_64_after_hwframe+0x77/0x7f ... </TASK> Since an invalid (without '\0' byte at all) byte sequence may be passed from userspace, add an extra check to ensure that such a sequence is rejected as possible ID and so never passed to 'kstrdup()' and further.

CVSS Details

Base Score
7.1
Exploitability
1.8
Impact
5.2
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality High
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
17.0% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-125 Out-of-bounds Read Memory Safety

Affected Products 7

VendorProductVersionRange
linuxlinux_kernel*≥2.6.30  –  <5.4.287
linuxlinux_kernel*≥5.5  –  <5.10.231
linuxlinux_kernel*≥5.11  –  <5.15.174
linuxlinux_kernel*≥5.16  –  <6.1.120
linuxlinux_kernel*≥6.2  –  <6.6.66
linuxlinux_kernel*≥6.7  –  <6.12.5
linuxlinux_kernel6.13any

References 9

  • git.kernel.org https://git.kernel.org/stable/c/04317f4eb2aad312ad85c1a17ad81fe75f1f9bc7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/147a42bb02de8735cb08476be6d0917987d022c2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/36a9d94dac28beef6b8abba46ba8874320d3e800
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a9bcc0b70d9baf3ff005874489a0dc9d023b54c3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ab9916321c95f5280b72b4c5055e269f98627efe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ad28612ebae1fcc1104bd432e99e99d87f6bfe09
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c40c96d98e536fc1daaa125c2332b988615e30a4
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/04317f4eb2aad312ad85c1a17ad81fe75f1f9bc7
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/147a42bb02de8735cb08476be6d0917987d022c2
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/36a9d94dac28beef6b8abba46ba8874320d3e800
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/a9bcc0b70d9baf3ff005874489a0dc9d023b54c3
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ab9916321c95f5280b72b4c5055e269f98627efe
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ad28612ebae1fcc1104bd432e99e99d87f6bfe09
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c40c96d98e536fc1daaa125c2332b988615e30a4
    Patch