CVE-2024-46849

CVE Details

Release Date:

2024-09-27

Description

In the Linux kernel, the following vulnerability has been resolved:\nASoC: meson: axg-card: fix 'use-after-free'\nBuffer 'card->dai_link' is reallocated in 'meson_card_reallocate_links()',\nso move 'pad' pointer initialization after this function when memory is\nalready reallocated.\nKasan bug report:\n==================================================================\nBUG: KASAN: slab-use-after-free in axg_card_add_link+0x76c/0x9bc\nRead of size 8 at addr ffff000000e8b260 by task modprobe/356\nCPU: 0 PID: 356 Comm: modprobe Tainted: G O 6.9.12-sdkernel #1\nCall trace:\ndump_backtrace+0x94/0xec\nshow_stack+0x18/0x24\ndump_stack_lvl+0x78/0x90\nprint_report+0xfc/0x5c0\nkasan_report+0xb8/0xfc\n__asan_load8+0x9c/0xb8\naxg_card_add_link+0x76c/0x9bc [snd_soc_meson_axg_sound_card]\nmeson_card_probe+0x344/0x3b8 [snd_soc_meson_card_utils]\nplatform_probe+0x8c/0xf4\nreally_probe+0x110/0x39c\n__driver_probe_device+0xb8/0x18c\ndriver_probe_device+0x108/0x1d8\n__driver_attach+0xd0/0x25c\nbus_for_each_dev+0xe0/0x154\ndriver_attach+0x34/0x44\nbus_add_driver+0x134/0x294\ndriver_register+0xa8/0x1e8\n__platform_driver_register+0x44/0x54\naxg_card_pdrv_init+0x20/0x1000 [snd_soc_meson_axg_sound_card]\ndo_one_initcall+0xdc/0x25c\ndo_init_module+0x10c/0x334\nload_module+0x24c4/0x26cc\ninit_module_from_file+0xd4/0x128\n__arm64_sys_finit_module+0x1f4/0x41c\ninvoke_syscall+0x60/0x188\nel0_svc_common.constprop.0+0x78/0x13c\ndo_el0_svc+0x30/0x40\nel0_svc+0x38/0x78\nel0t_64_sync_handler+0x100/0x12c\nel0t_64_sync+0x190/0x194

See more information about CVE-2024-46849 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:	7.8
Vector String:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version:	3.1
Attack Vector:	Local
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality:	High
Integrity:	High
Availability:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2024-12884	2024-12-16
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12884	2024-12-16
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12887	2024-12-18
Oracle Linux version 9 (kernel-uek)	ELSA-2024-12887	2024-12-18