| 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-2024-56577: media: mtk-jpeg: Fix null-ptr-deref during unload module |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| media: mtk-jpeg: Fix null-ptr-deref during unload module |
| |
| The workqueue should be destroyed in mtk_jpeg_core.c since commit |
| 09aea13ecf6f ("media: mtk-jpeg: refactor some variables"), otherwise |
| the below calltrace can be easily triggered. |
| |
| [ 677.862514] Unable to handle kernel paging request at virtual address dfff800000000023 |
| [ 677.863633] KASAN: null-ptr-deref in range [0x0000000000000118-0x000000000000011f] |
| ... |
| [ 677.879654] CPU: 6 PID: 1071 Comm: modprobe Tainted: G O 6.8.12-mtk+gfa1a78e5d24b+ #17 |
| ... |
| [ 677.882838] pc : destroy_workqueue+0x3c/0x770 |
| [ 677.883413] lr : mtk_jpegdec_destroy_workqueue+0x70/0x88 [mtk_jpeg_dec_hw] |
| [ 677.884314] sp : ffff80008ad974f0 |
| [ 677.884744] x29: ffff80008ad974f0 x28: ffff0000d7115580 x27: ffff0000dd691070 |
| [ 677.885669] x26: ffff0000dd691408 x25: ffff8000844af3e0 x24: ffff80008ad97690 |
| [ 677.886592] x23: ffff0000e051d400 x22: ffff0000dd691010 x21: dfff800000000000 |
| [ 677.887515] x20: 0000000000000000 x19: 0000000000000000 x18: ffff800085397ac0 |
| [ 677.888438] x17: 0000000000000000 x16: ffff8000801b87c8 x15: 1ffff000115b2e10 |
| [ 677.889361] x14: 00000000f1f1f1f1 x13: 0000000000000000 x12: ffff7000115b2e4d |
| [ 677.890285] x11: 1ffff000115b2e4c x10: ffff7000115b2e4c x9 : ffff80000aa43e90 |
| [ 677.891208] x8 : 00008fffeea4d1b4 x7 : ffff80008ad97267 x6 : 0000000000000001 |
| [ 677.892131] x5 : ffff80008ad97260 x4 : ffff7000115b2e4d x3 : 0000000000000000 |
| [ 677.893054] x2 : 0000000000000023 x1 : dfff800000000000 x0 : 0000000000000118 |
| [ 677.893977] Call trace: |
| [ 677.894297] destroy_workqueue+0x3c/0x770 |
| [ 677.894826] mtk_jpegdec_destroy_workqueue+0x70/0x88 [mtk_jpeg_dec_hw] |
| [ 677.895677] devm_action_release+0x50/0x90 |
| [ 677.896211] release_nodes+0xe8/0x170 |
| [ 677.896688] devres_release_all+0xf8/0x178 |
| [ 677.897219] device_unbind_cleanup+0x24/0x170 |
| [ 677.897785] device_release_driver_internal+0x35c/0x480 |
| [ 677.898461] device_release_driver+0x20/0x38 |
| ... |
| [ 677.912665] ---[ end trace 0000000000000000 ]--- |
| |
| The Linux kernel CVE team has assigned CVE-2024-56577 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.4 with commit 09aea13ecf6f89ed7f18114953695563f64f461c and fixed in 6.6.64 with commit 0ba08c21c6a92e6512e73644555120427c9a49d4 |
| Issue introduced in 6.4 with commit 09aea13ecf6f89ed7f18114953695563f64f461c and fixed in 6.12.4 with commit bc3889a39baf783c64c6d628bbb74d76ce164bb1 |
| Issue introduced in 6.4 with commit 09aea13ecf6f89ed7f18114953695563f64f461c and fixed in 6.13 with commit 17af2b39daf12870cac61ffc360e62bc35798afb |
| |
| 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-2024-56577 |
| 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: |
| drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c |
| drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.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/0ba08c21c6a92e6512e73644555120427c9a49d4 |
| https://git.kernel.org/stable/c/bc3889a39baf783c64c6d628bbb74d76ce164bb1 |
| https://git.kernel.org/stable/c/17af2b39daf12870cac61ffc360e62bc35798afb |
