CVE-2024-45001

CVE Details

Release Date:

2024-09-04

Description

In the Linux kernel, the following vulnerability has been resolved:\nnet: mana: Fix RX buf alloc_size alignment and atomic op panic\nThe MANA driver's RX buffer alloc_size is passed into napi_build_skb() to\ncreate SKB. skb_shinfo(skb) is located at the end of skb, and its alignment\nis affected by the alloc_size passed into napi_build_skb(). The size needs\nto be aligned properly for better performance and atomic operations.\nOtherwise, on ARM64 CPU, for certain MTU settings like 4000, atomic\noperations may panic on the skb_shinfo(skb)->dataref due to alignment fault.\nTo fix this bug, add proper alignment to the alloc_size calculation.\nSample panic info:\n[ 253.298819] Unable to handle kernel paging request at virtual address ffff000129ba5cce\n[ 253.300900] Mem abort info:\n[ 253.301760] ESR = 0x0000000096000021\n[ 253.302825] EC = 0x25: DABT (current EL), IL = 32 bits\n[ 253.304268] SET = 0, FnV = 0\n[ 253.305172] EA = 0, S1PTW = 0\n[ 253.306103] FSC = 0x21: alignment fault\nCall trace:\n__skb_clone+0xfc/0x198\nskb_clone+0x78/0xe0\nraw6_local_deliver+0xfc/0x228\nip6_protocol_deliver_rcu+0x80/0x500\nip6_input_finish+0x48/0x80\nip6_input+0x48/0xc0\nip6_sublist_rcv_finish+0x50/0x78\nip6_sublist_rcv+0x1cc/0x2b8\nipv6_list_rcv+0x100/0x150\n__netif_receive_skb_list_core+0x180/0x220\nnetif_receive_skb_list_internal+0x198/0x2a8\n__napi_poll+0x138/0x250\nnet_rx_action+0x148/0x330\nhandle_softirqs+0x12c/0x3a0

See more information about CVE-2024-45001 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

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

Errata information

Platform	Errata	Release Date
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12887	2024-12-18
Oracle Linux version 9 (kernel-uek)	ELSA-2024-12887	2024-12-18