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🛡️ CVE-2024-45001 — kernel

🟠 CVSS 7.5 — High ✅ No Known Exploit NVD
7.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

net: mana: Fix RX buf alloc_size alignment and atomic op panic

In the Linux kernel, the following vulnerability has been resolved:

net: mana: Fix RX buf alloc_size alignment and atomic op panic

The MANA driver's RX buffer alloc_size is passed into napi_build_skb() to

create SKB. skb_shinfo(skb) is located at the end of skb, and its alignment

is affected by the alloc_size passed into napi_build_skb(). The size needs

to be aligned properly for better performance and atomic operations.

Otherwise, on ARM64 CPU, for certain MTU settings like 4000, atomic

operations may panic on the skb_shinfo(skb)->dataref due to alignment fault.

To fix this bug, add proper alignment to the alloc_size calculation.

Sample panic info:

[ 253.298819] Unable to handle kernel paging request at virtual address ffff000129ba5cce

[ 253.300900] Mem abort info:

[ 253.301760] ESR = 0x0000000096000021

[ 253.302825] EC = 0x25: DABT (current EL), IL = 32 bits

[ 253.304268] SET = 0, FnV = 0

[ 253.305172] EA = 0, S1PTW = 0

[ 253.306103] FSC = 0x21: alignment fault

Call trace:

__skb_clone+0xfc/0x198

skb_clone+0x78/0xe0

raw6_local_deliver+0xfc/0x228

ip6_protocol_deliver_rcu+0x80/0x500

ip6_input_finish+0x48/0x80

ip6_input+0x48/0xc0

ip6_sublist_rcv_finish+0x50/0x78

ip6_sublist_rcv+0x1cc/0x2b8

ipv6_list_rcv+0x100/0x150

__netif_receive_skb_list_core+0x180/0x220

netif_receive_skb_list_internal+0x198/0x2a8

__napi_poll+0x138/0x250

net_rx_action+0x148/0x330

handle_softirqs+0x12c/0x3a0

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: None.
  • Availability impact: High — total loss, or loss the attacker controls.

Affected software

CVE-2024-45001 is recorded against 2 packages.

  • kernel (from 6.7.0 up to 6.10.7)
  • linux-kernel

Timeline and source

Published on 4 September 2024 and last revised on 12 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
git.kernel.org (Web)
lists.debian.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

Other advisories for this package

kernel has other advisories on record. If you are patching this one, these are worth checking on the same host:

CVE-2024-45001 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity High
CVSS Score 7.5
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2024-09-04
Updated 2026-08-20
Modified 2026-08-12

Affected Packages

Software From version Fixed in
kernel 6.7.0 6.10.7
linux-kernel — —

Similar Threats

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