CVE-2024-56577
media: mtk-jpeg: Fix null-ptr-deref during unload module
Reported by linux · Published December 27, 2024
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 ]---
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| Linux | Linux | bc3889a39baf783c64c6d628bbb74d76ce164bb1, 17af2b39daf12870cac61ffc360e62bc35798afb, 0ba08c21c6a92e6512e73644555120427c9a49d4 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux | 09aea13ecf6f89ed7f18114953695563f64f461c, 09aea13ecf6f89ed7f18114953695563f64f461c, 09aea13ecf6f89ed7f18114953695563f64f461c |
| Linux | Linux | 6.4, 0, 6.6.64 |
| Linux | Linux | 09aea13ecf6f89ed7f18114953695563f64f461c, 6.6.64, 6.12.4 |
| linux | linux_kernel | 6.4, 6.4, 6.4 |
Timeline
- Dec 27, 2024 CVE Published
- Dec 28, 2024 EPSS Score (30 in total, the first dated here)
- Feb 16, 2025 Coalition ESS Score (5 in total, the first dated here)
- Dec 16, 2025 PoC Published
- Dec 30, 2025 Security Advisory (422 in total, the first dated here)
- Apr 29, 2026 Distribution Patch (340 in total, the first dated here)
- Oct 15, 2026 CVE Updated
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