CVE-2024-46715

MEDIUM EPSS 12.6%
Published Sep 18, 20241y ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Sep 18, 2024 1y ago
Last Modified Jun 17, 2026 1w ago

Description

In the Linux kernel, the following vulnerability has been resolved: driver: iio: add missing checks on iio_info's callback access Some callbacks from iio_info structure are accessed without any check, so if a driver doesn't implement them trying to access the corresponding sysfs entries produce a kernel oops such as: [ 2203.527791] Unable to handle kernel NULL pointer dereference at virtual address 00000000 when execute [...] [ 2203.783416] Call trace: [ 2203.783429] iio_read_channel_info_avail from dev_attr_show+0x18/0x48 [ 2203.789807] dev_attr_show from sysfs_kf_seq_show+0x90/0x120 [ 2203.794181] sysfs_kf_seq_show from seq_read_iter+0xd0/0x4e4 [ 2203.798555] seq_read_iter from vfs_read+0x238/0x2a0 [ 2203.802236] vfs_read from ksys_read+0xa4/0xd4 [ 2203.805385] ksys_read from ret_fast_syscall+0x0/0x54 [ 2203.809135] Exception stack(0xe0badfa8 to 0xe0badff0) [ 2203.812880] dfa0: 00000003 b6f10f80 00000003 b6eab000 00020000 00000000 [ 2203.819746] dfc0: 00000003 b6f10f80 7ff00000 00000003 00000003 00000000 00020000 00000000 [ 2203.826619] dfe0: b6e1bc88 bed80958 b6e1bc94 b6e1bcb0 [ 2203.830363] Code: bad PC value [ 2203.832695] ---[ end trace 0000000000000000 ]---

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
12.6% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-476 NULL Pointer Dereference Memory Safety

Affected Products 3

VendorProductVersionRange
linuxlinux_kernel* <6.1.109
linuxlinux_kernel*≥6.2  –  <6.6.50
linuxlinux_kernel*≥6.7  –  <6.10.9

References 6

  • git.kernel.org https://git.kernel.org/stable/c/0cc7e0ee31e5c44904e98e2229d591e093282a70
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/2b961d5786b4b31c367c719a2f918569b444c007
  • git.kernel.org https://git.kernel.org/stable/c/72f022ebb9deac28663fa4c04ba315ed5d6654d1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4ec8dedca961db056ec85cb7ca8c9f7e2e92252
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dc537a72f64890d883d24ae4ac58733fc5bc523d
    Patch
  • lists.debian.org https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/0cc7e0ee31e5c44904e98e2229d591e093282a70
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/72f022ebb9deac28663fa4c04ba315ed5d6654d1
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c4ec8dedca961db056ec85cb7ca8c9f7e2e92252
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/dc537a72f64890d883d24ae4ac58733fc5bc523d
    Patch