| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-46849: ASoC: meson: axg-card: fix 'use-after-free' |
| |
| Description |
| =========== |
| |
| 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 |
| |
| The Linux kernel CVE team has assigned CVE-2024-46849 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.19 with commit 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b and fixed in 5.4.285 with commit a33145f494e6cb82f3e018662cc7c4febf271f22 |
| Issue introduced in 4.19 with commit 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b and fixed in 5.10.227 with commit 5a2cc2bb81399e9ebc72560541137eb04d61dc3d |
| Issue introduced in 4.19 with commit 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b and fixed in 5.15.168 with commit fb0530025d502cb79d2b2801b14a9d5261833f1a |
| Issue introduced in 4.19 with commit 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b and fixed in 6.1.111 with commit e1a199ec31617242e1a0ea8f312341e682d0c037 |
| Issue introduced in 4.19 with commit 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b and fixed in 6.6.52 with commit e43364f578cdc2f8083abbc0cb743ea55e827c29 |
| Issue introduced in 4.19 with commit 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b and fixed in 6.10.11 with commit 7d318166bf55e9029d56997c3b134f4ac2ae2607 |
| Issue introduced in 4.19 with commit 7864a79f37b55769b817d5e6c5ae0ca4bfdba93b and fixed in 6.11 with commit 4f9a71435953f941969a4f017e2357db62d85a86 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-46849 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| sound/soc/meson/axg-card.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/a33145f494e6cb82f3e018662cc7c4febf271f22 |
| https://git.kernel.org/stable/c/5a2cc2bb81399e9ebc72560541137eb04d61dc3d |
| https://git.kernel.org/stable/c/fb0530025d502cb79d2b2801b14a9d5261833f1a |
| https://git.kernel.org/stable/c/e1a199ec31617242e1a0ea8f312341e682d0c037 |
| https://git.kernel.org/stable/c/e43364f578cdc2f8083abbc0cb743ea55e827c29 |
| https://git.kernel.org/stable/c/7d318166bf55e9029d56997c3b134f4ac2ae2607 |
| https://git.kernel.org/stable/c/4f9a71435953f941969a4f017e2357db62d85a86 |
