7.8

CVE-2024-46849

ASoC: meson: axg-card: fix 'use-after-free'

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

ASoC: meson: axg-card: fix 'use-after-free'

Buffer 'card->dai_link' is reallocated in 'meson_card_reallocate_links()',
so move 'pad' pointer initialization after this function when memory is
already reallocated.

Kasan bug report:

==================================================================
BUG: KASAN: slab-use-after-free in axg_card_add_link+0x76c/0x9bc
Read of size 8 at addr ffff000000e8b260 by task modprobe/356

CPU: 0 PID: 356 Comm: modprobe Tainted: G O 6.9.12-sdkernel #1
Call trace:
 dump_backtrace+0x94/0xec
 show_stack+0x18/0x24
 dump_stack_lvl+0x78/0x90
 print_report+0xfc/0x5c0
 kasan_report+0xb8/0xfc
 __asan_load8+0x9c/0xb8
 axg_card_add_link+0x76c/0x9bc [snd_soc_meson_axg_sound_card]
 meson_card_probe+0x344/0x3b8 [snd_soc_meson_card_utils]
 platform_probe+0x8c/0xf4
 really_probe+0x110/0x39c
 __driver_probe_device+0xb8/0x18c
 driver_probe_device+0x108/0x1d8
 __driver_attach+0xd0/0x25c
 bus_for_each_dev+0xe0/0x154
 driver_attach+0x34/0x44
 bus_add_driver+0x134/0x294
 driver_register+0xa8/0x1e8
 __platform_driver_register+0x44/0x54
 axg_card_pdrv_init+0x20/0x1000 [snd_soc_meson_axg_sound_card]
 do_one_initcall+0xdc/0x25c
 do_init_module+0x10c/0x334
 load_module+0x24c4/0x26cc
 init_module_from_file+0xd4/0x128
 __arm64_sys_finit_module+0x1f4/0x41c
 invoke_syscall+0x60/0x188
 el0_svc_common.constprop.0+0x78/0x13c
 do_el0_svc+0x30/0x40
 el0_svc+0x38/0x78
 el0t_64_sync_handler+0x100/0x12c
 el0t_64_sync+0x190/0x194
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Debian ≫ Debian Linux Version11.0
Linux ≫ Linux Kernel Version >= 4.19 < 5.4.285
Linux ≫ Linux Kernel Version >= 5.5 < 5.10.227
Linux ≫ Linux Kernel Version >= 5.11 < 5.15.168
Linux ≫ Linux Kernel Version >= 5.16 < 6.1.111
Linux ≫ Linux Kernel Version >= 6.2 < 6.6.52
Linux ≫ Linux Kernel Version >= 6.7 < 6.10.11
Linux ≫ Linux Kernel Version6.11 Updaterc1
Linux ≫ Linux Kernel Version6.11 Updaterc2
Linux ≫ Linux Kernel Version6.11 Updaterc3
Linux ≫ Linux Kernel Version6.11 Updaterc4
Linux ≫ Linux Kernel Version6.11 Updaterc5
Linux ≫ Linux Kernel Version6.11 Updaterc6
Linux ≫ Linux Kernel Version6.11 Updaterc7
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.25% 0.16
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
nvd@nist.gov 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://git.kernel.org/stable/c/4f9a71435953f941969a4f017e2357db62d85a86
Patch
https://git.kernel.org/stable/c/5a2cc2bb81399e9ebc72560541137eb04d61dc3d
Patch
https://git.kernel.org/stable/c/7d318166bf55e9029d56997c3b134f4ac2ae2607
Patch
https://git.kernel.org/stable/c/a33145f494e6cb82f3e018662cc7c4febf271f22
Patch
https://git.kernel.org/stable/c/e1a199ec31617242e1a0ea8f312341e682d0c037
Patch
https://git.kernel.org/stable/c/e43364f578cdc2f8083abbc0cb743ea55e827c29
Patch
https://git.kernel.org/stable/c/fb0530025d502cb79d2b2801b14a9d5261833f1a
Patch
https://lists.debian.org/debian-lts-announce/2025/03/msg00002.html
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https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
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