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7.8
CVE-2026-46011: Linux kernel MTK JPEG driver may crash when closing device
CVE-2026-46011 · published 5 months ago
Summary
The MediaTek JPEG driver in certain Canonical Linux kernel builds can try to use memory that has already been freed when the device is closed while a JPEG operation is still running. This can cause the system to become unstable or crash. Updating to a kernel version that includes the fix, or ensuring the driver is not closed during active JPEG work, resolves the issue.
What to do
- Update bellsoft linux-lts to version 6.12.87-r0.
- Update debian linux to version 6.12.86-1.
- Update debian linux to version 7.0.4-1.
- Update canonical linux to version 7.0.0-27.27.
- Update canonical linux-aws to version 7.0.0-1008.8.
- Update canonical linux-gcp to version 7.0.0-1007.7.
- Update canonical linux-ibm to version 7.0.0-1009.9.
- Update canonical linux-nvidia to version 7.0.0-1013.13.
- Update canonical linux-oem-7.0 to version 7.0.0-1008.8.
- Update canonical linux-oracle to version 7.0.0-1007.7.
- Update canonical linux-raspi to version 7.0.0-1014.14.
- Update canonical linux-realtime to version 7.0.0-27.27.1.
- Update canonical linux-riscv to version 7.0.0-27.27.1.
- Update canonical linux-aws-6.8 to version 6.8.0-1061.64~22.04.1.
- Update canonical linux-azure-6.8 to version 6.8.0-1063.71~22.04.1.
- Update canonical linux-azure-fde-6.8 to version 6.8.0-1062.69~22.04.1.
- Update canonical linux-gcp-6.8 to version 6.8.0-1064.72~22.04.1.
- Update canonical linux-hwe-6.8 to version 6.8.0-136.136~22.04.1.
- Update canonical linux-ibm-6.8 to version 6.8.0-1061.62~22.04.1.
- Update canonical linux-lowlatency-hwe-6.8 to version 6.8.0-136.136.2~22.04.1.
- Update canonical linux-nvidia-6.8 to version 6.8.0-1059.62~22.04.1.
- Update canonical linux-oracle-6.8 to version 6.8.0-1058.61~22.04.1.
- Update canonical linux-riscv-6.8 to version 6.8.0-136.136~22.04.3.
- Update canonical linux-realtime-6.8 to version 6.8.1-1056.57~22.04.2.
- Update canonical linux to version 6.8.0-136.136.
- Update canonical linux-aws to version 6.8.0-1061.64.
- Update canonical linux-azure to version 6.8.0-1063.71.
- Update canonical linux-azure-fde to version 6.8.0-1062.69.
- Update canonical linux-gcp to version 6.8.0-1064.72.
- Update canonical linux-gke to version 6.8.0-1059.67.
- Update canonical linux-gkeop to version 6.8.0-1046.50.
- Update canonical linux-hwe-7.0 to version 7.0.0-28.28~24.04.1.
- Update canonical linux-ibm to version 6.8.0-1061.62.
- Update canonical linux-lowlatency to version 6.8.0-136.136.2.
- Update canonical linux-nvidia to version 6.8.0-1059.62.
- Update canonical linux-nvidia-lowlatency to version 6.8.0-1059.62.1.
- Update canonical linux-nvidia-tegra to version 6.8.0-1030.31.
- Update canonical linux-oracle to version 6.8.0-1058.61.
- Update canonical linux-raspi to version 6.8.0-1061.65.
- Update canonical linux-xilinx to version 6.8.0-1033.34.
- Update canonical linux-aws-fips to version 6.8.0-1061.64+fips1.
- Update canonical linux-azure-fips to version 6.8.0-1063.71+fips2.
- Update canonical linux-fips to version 6.8.0-136.136+fips2.
- Update canonical linux-gcp-fips to version 6.8.0-1064.72+fips1.
- Update canonical linux-raspi-realtime to version 6.8.0-2050.52.
- Update canonical linux-realtime to version 6.8.1-1056.57.
- Update canonical linux-azure to version 7.0.0-1010.10.
- Update canonical linux-azure-fde to version 7.0.0-1009.9.
- Update canonical linux to version 6.8.0-138.138.aikido.87.
- Update canonical rootio-linux to version 6.8.0-138.138.aikido.87.
- Update canonical linux-bluefield to version 6.8.0-1028.33.
- Update linux to version 6.8.0-146.146.aikido.89.
- Update rootio-linux to version 6.8.0-146.146.aikido.89.
- Update linux to version 6.8.0-147.147.aikido.90.
- Update rootio-linux to version 6.8.0-147.147.aikido.90.
- Update linux kernel to version 7.0.4.
Affected software
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Ubuntu:20.04:LTS | canonical | linux-azure-fde | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gcp-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gke | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gke-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gkeop | All versions |
| Ubuntu:20.04:LTS | canonical | linux-gkeop-5.15 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-hwe-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-intel-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.10 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.14 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oem-5.6 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-oracle-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-raspi2 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-riscv-5.8 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-allwinner-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-aws-6.8 |
< 6.8.0-1061.64~22.04.1 Fix: upgrade to 6.8.0-1061.64~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-azure-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-6.8 |
< 6.8.0-1063.71~22.04.1 Fix: upgrade to 6.8.0-1063.71~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-azure-fde-6.8 |
< 6.8.0-1062.69~22.04.1 Fix: upgrade to 6.8.0-1062.69~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-gcp-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-gcp-6.8 |
< 6.8.0-1064.72~22.04.1 Fix: upgrade to 6.8.0-1064.72~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-hwe-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-hwe-6.8 |
< 6.8.0-136.136~22.04.1 Fix: upgrade to 6.8.0-136.136~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-ibm-6.8 |
< 6.8.0-1061.62~22.04.1 Fix: upgrade to 6.8.0-1061.62~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-intel-iot-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-lowlatency-hwe-6.8 |
< 6.8.0-136.136.2~22.04.1 Fix: upgrade to 6.8.0-136.136.2~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.2 | All versions |
Showing 50 of 174. Show the rest
| Ecosystem | Vendor | Product | Affected versions |
|---|---|---|---|
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-nvidia-6.8 |
< 6.8.0-1059.62~22.04.1 Fix: upgrade to 6.8.0-1059.62~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-oem-5.17 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.0 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.1 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oem-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-oracle-6.8 |
< 6.8.0-1058.61~22.04.1 Fix: upgrade to 6.8.0-1058.61~22.04.1
|
| Ubuntu:22.04:LTS | canonical | linux-realtime | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-6.5 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-riscv-6.8 |
< 6.8.0-136.136~22.04.3 Fix: upgrade to 6.8.0-136.136~22.04.3
|
| Ubuntu:22.04:LTS | canonical | linux-starfive-5.19 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-6.2 | All versions |
| Ubuntu:22.04:LTS | canonical | linux-starfive-6.5 | All versions |
| Ubuntu:Pro:Realtime:22.04:LTS | canonical | linux-realtime-6.8 |
< 6.8.1-1056.57~22.04.2 Fix: upgrade to 6.8.1-1056.57~22.04.2
|
| Ubuntu:24.04:LTS | canonical | linux |
< 6.8.0-136.136 Fix: upgrade to 6.8.0-136.136
|
| Ubuntu:24.04:LTS | canonical | linux-aws |
< 6.8.0-1061.64 Fix: upgrade to 6.8.0-1061.64
|
| Ubuntu:24.04:LTS | canonical | linux-aws-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-aws-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure |
< 6.8.0-1063.71 Fix: upgrade to 6.8.0-1063.71
|
| Ubuntu:24.04:LTS | canonical | linux-azure-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-fde |
< 6.8.0-1062.69 Fix: upgrade to 6.8.0-1062.69
|
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-fde-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-nvidia | All versions |
| Ubuntu:24.04:LTS | canonical | linux-azure-nvidia-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp |
< 6.8.0-1064.72 Fix: upgrade to 6.8.0-1064.72
|
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gcp-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-gke |
< 6.8.0-1059.67 Fix: upgrade to 6.8.0-1059.67
|
| Ubuntu:24.04:LTS | canonical | linux-gkeop |
< 6.8.0-1046.50 Fix: upgrade to 6.8.0-1046.50
|
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-hwe-7.0 |
< 7.0.0-28.28~24.04.1 Fix: upgrade to 7.0.0-28.28~24.04.1
|
| Ubuntu:24.04:LTS | canonical | linux-ibm |
< 6.8.0-1061.62 Fix: upgrade to 6.8.0-1061.62
|
| Ubuntu:24.04:LTS | canonical | linux-lowlatency |
< 6.8.0-136.136.2 Fix: upgrade to 6.8.0-136.136.2
|
| Ubuntu:24.04:LTS | canonical | linux-lowlatency-hwe-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia |
< 6.8.0-1059.62 Fix: upgrade to 6.8.0-1059.62
|
| Ubuntu:24.04:LTS | canonical | linux-nvidia-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-nvidia-lowlatency |
< 6.8.0-1059.62.1 Fix: upgrade to 6.8.0-1059.62.1
|
| Ubuntu:24.04:LTS | canonical | linux-nvidia-tegra |
< 6.8.0-1030.31 Fix: upgrade to 6.8.0-1030.31
|
| Ubuntu:24.04:LTS | canonical | linux-oem-6.11 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oem-6.8 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle |
< 6.8.0-1058.61 Fix: upgrade to 6.8.0-1058.61
|
| Ubuntu:24.04:LTS | canonical | linux-oracle-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-oracle-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-raspi |
< 6.8.0-1061.65 Fix: upgrade to 6.8.0-1061.65
|
| Ubuntu:24.04:LTS | canonical | linux-raspi-realtime | All versions |
| Ubuntu:24.04:LTS | canonical | linux-realtime | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv-6.14 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-riscv-6.17 | All versions |
| Ubuntu:24.04:LTS | canonical | linux-xilinx |
< 6.8.0-1033.34 Fix: upgrade to 6.8.0-1033.34
|
| Ubuntu:Nvidia-BlueField:24.04:LTS | canonical | linux-bluefield |
< 6.8.0-1028.33 Fix: upgrade to 6.8.0-1028.33
|
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-aws-fips |
< 6.8.0-1061.64+fips1 Fix: upgrade to 6.8.0-1061.64+fips1
|
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-azure-fips |
< 6.8.0-1063.71+fips2 Fix: upgrade to 6.8.0-1063.71+fips2
|
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-fips |
< 6.8.0-136.136+fips2 Fix: upgrade to 6.8.0-136.136+fips2
|
| Ubuntu:Pro:FIPS-updates:24.04:LTS | canonical | linux-gcp-fips |
< 6.8.0-1064.72+fips1 Fix: upgrade to 6.8.0-1064.72+fips1
|
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-raspi-realtime |
< 6.8.0-2050.52 Fix: upgrade to 6.8.0-2050.52
|
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime |
< 6.8.1-1056.57 Fix: upgrade to 6.8.1-1056.57
|
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime-6.14 | All versions |
| Ubuntu:Pro:Realtime:24.04:LTS | canonical | linux-realtime-6.17 | All versions |
| Ubuntu:25.10 | canonical | linux-aws | All versions |
| Alpaquita:25 | bellsoft | linux-lts |
>= 6.12.85-r0, < 6.12.87-r0 Fix: upgrade to 6.12.87-r0
|
| Alpaquita:stream | bellsoft | linux-lts |
>= 6.12.85-r0, < 6.12.87-r0 Fix: upgrade to 6.12.87-r0
|
| Debian:13 | debian | linux |
< 6.12.86-1 Fix: upgrade to 6.12.86-1
|
| Debian:14 | debian | linux |
< 7.0.4-1 Fix: upgrade to 7.0.4-1
|
| – | linux | linux_kernel |
>= 6.2, < 6.6.140 >= 6.7, < 6.12.86 >= 6.13, < 6.18.27 >= 6.19, < 7.0.4 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* |
| Ubuntu:16.04:LTS | canonical | linux-hwe-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.0 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-aws-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-azure-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gcp | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gcp-5.3 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gke-4.15 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gke-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-gkeop-5.4 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-hwe | All versions |
| Ubuntu:18.04:LTS | canonical | linux-hwe-edge | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oem | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.0 | All versions |
| Ubuntu:18.04:LTS | canonical | linux-oracle-5.3 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-aws-5.8 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.11 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.13 | All versions |
| Ubuntu:20.04:LTS | canonical | linux-azure-5.8 | All versions |
| Ubuntu:25.10 | canonical | linux | All versions |
| Ubuntu:25.10 | canonical | linux-azure | All versions |
| Ubuntu:25.10 | canonical | linux-azure-fde | All versions |
| Ubuntu:25.10 | canonical | linux-gcp | All versions |
| Ubuntu:25.10 | canonical | linux-oracle | All versions |
| Ubuntu:25.10 | canonical | linux-raspi | All versions |
| Ubuntu:25.10 | canonical | linux-realtime | All versions |
| Ubuntu:25.10 | canonical | linux-riscv | All versions |
| Ubuntu:26.04:LTS | canonical | linux |
< 7.0.0-27.27 Fix: upgrade to 7.0.0-27.27
|
| Ubuntu:26.04:LTS | canonical | linux-aws |
< 7.0.0-1008.8 Fix: upgrade to 7.0.0-1008.8
|
| Ubuntu:26.04:LTS | canonical | linux-azure |
< 7.0.0-1010.10 Fix: upgrade to 7.0.0-1010.10
|
| Ubuntu:26.04:LTS | canonical | linux-azure-fde |
< 7.0.0-1009.9 Fix: upgrade to 7.0.0-1009.9
|
| Ubuntu:26.04:LTS | canonical | linux-gcp |
< 7.0.0-1007.7 Fix: upgrade to 7.0.0-1007.7
|
| Ubuntu:26.04:LTS | canonical | linux-ibm |
< 7.0.0-1009.9 Fix: upgrade to 7.0.0-1009.9
|
| Ubuntu:26.04:LTS | canonical | linux-nvidia |
< 7.0.0-1013.13 Fix: upgrade to 7.0.0-1013.13
|
| Ubuntu:26.04:LTS | canonical | linux-oem-7.0 |
< 7.0.0-1008.8 Fix: upgrade to 7.0.0-1008.8
|
| Ubuntu:26.04:LTS | canonical | linux-oracle |
< 7.0.0-1007.7 Fix: upgrade to 7.0.0-1007.7
|
| Ubuntu:26.04:LTS | canonical | linux-raspi |
< 7.0.0-1014.14 Fix: upgrade to 7.0.0-1014.14
|
| Ubuntu:26.04:LTS | canonical | linux-realtime |
< 7.0.0-27.27.1 Fix: upgrade to 7.0.0-27.27.1
|
| Ubuntu:26.04:LTS | canonical | linux-riscv |
< 7.0.0-27.27.1 Fix: upgrade to 7.0.0-27.27.1
|
| Root:Ubuntu:24.04 | canonical | linux |
< 6.8.0-138.138.aikido.87 Fix: upgrade to 6.8.0-138.138.aikido.87
|
| Root:Ubuntu:24.04 | canonical | rootio-linux |
< 6.8.0-138.138.aikido.87 Fix: upgrade to 6.8.0-138.138.aikido.87
|
| Root:Ubuntu:24.04 | – | linux |
< 6.8.0-146.146.aikido.89 < 6.8.0-147.147.aikido.90 Fix: upgrade to 6.8.0-146.146.aikido.89
|
| Root:Ubuntu:24.04 | – | rootio-linux |
< 6.8.0-146.146.aikido.89 < 6.8.0-147.147.aikido.90 Fix: upgrade to 6.8.0-146.146.aikido.89
|
| Linux | linux | kernel |
>= 6.19.0, < 7.0.4 Fix: upgrade to 7.0.4
|
Original advisory text
media: mtk-jpeg: fix use-after-free in release path due to uncancelled work
In the Linux kernel, the following vulnerability has been resolved:
media: mtk-jpeg: fix use-after-free in release path due to uncancelled work
The mtk_jpeg_release() function frees the context structure (ctx) without
first cancelling any pending or running work in ctx->jpeg_work. This
creates a race window where the workqueue callback may still be accessing
the context memory after it has been freed.
Race condition:
CPU 0 (release) CPU 1 (workqueue)
---------------- ------------------
close()
mtk_jpeg_release()
mtk_jpegenc_worker()
ctx = work->data
// accessing ctx
kfree(ctx) // freed!
access ctx // UAF!
The work is queued via queue_work() during JPEG encode/decode operations
(via mtk_jpeg_device_run). If the device is closed while work is pending
or running, the work handler will access freed memory.
Fix this by calling cancel_work_sync() BEFORE acquiring the mutex. This
ordering is critical: if cancel_work_sync() is called after mutex_lock(),
and the work handler also tries to acquire the same mutex, it would cause
a deadlock.
Note: The open error path does NOT need cancel_work_sync() because
INIT_WORK() only initializes the work structure - it does not schedule
it. Work is only scheduled later during ioctl operations.
media: mtk-jpeg: fix use-after-free in release path due to uncancelled work
The mtk_jpeg_release() function frees the context structure (ctx) without
first cancelling any pending or running work in ctx->jpeg_work. This
creates a race window where the workqueue callback may still be accessing
the context memory after it has been freed.
Race condition:
CPU 0 (release) CPU 1 (workqueue)
---------------- ------------------
close()
mtk_jpeg_release()
mtk_jpegenc_worker()
ctx = work->data
// accessing ctx
kfree(ctx) // freed!
access ctx // UAF!
The work is queued via queue_work() during JPEG encode/decode operations
(via mtk_jpeg_device_run). If the device is closed while work is pending
or running, the work handler will access freed memory.
Fix this by calling cancel_work_sync() BEFORE acquiring the mutex. This
ordering is critical: if cancel_work_sync() is called after mutex_lock(),
and the work handler also tries to acquire the same mutex, it would cause
a deadlock.
Note: The open error path does NOT need cancel_work_sync() because
INIT_WORK() only initializes the work structure - it does not schedule
it. Work is only scheduled later during ioctl operations.
References
- https://ubuntu.com/security/notices/USN-8569-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8567-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8574-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8574-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8595-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8596-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8603-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8595-3 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8619-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8665-1 Vendor Advisory
- https://git.kernel.org/stable/c/0498b27a1542021d90269d58347501d4c3ccd84e URL
- https://git.kernel.org/stable/c/2209fdae5c2f615930c9af1379c1cfca199ec5d8 URL
- https://git.kernel.org/stable/c/26506a30e0e26d612f82a7bf0e395626968a44e6 URL
- https://git.kernel.org/stable/c/34c519feef3e4fcff1078dc8bdb25fbbbd10303f URL
- https://docs.bell-sw.com/security/cves/CVE-2026-46011 Vendor Advisory
- https://security-tracker.debian.org/tracker/CVE-2026-46011 Vendor Advisory
- https://ubuntu.com/security/CVE-2026-46011 Third Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2026-46011 Third Party Advisory
- https://git.kernel.org/linus/34c519feef3e4fcff1078dc8bdb25fbbbd10303f Third Party Advisory
- https://ubuntu.com/security/notices/USN-8488-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8489-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8488-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8507-1 Vendor Advisory
- https://git.kernel.org/stable/c/e78c39f720679fcf3a2eacd82725ec3ea2648301 URL
- https://ubuntu.com/security/notices/USN-8595-2 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8606-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8607-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8608-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8609-1 Vendor Advisory
- https://ubuntu.com/security/notices/USN-8574-3 Vendor Advisory
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46011... Vendor Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-46011 Vendor Advisory
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git Product
Internet-facing
14 days
Internal
At next upgrade
- Not known to be exploited
- Needs hands-on effort to exploit (estimated)
- Gives an attacker full control (estimated)
Type
CWE-416Use After Free
Timeline
Published27 May 2026
Updated26 Oct 2026
First seen30 May 2026
Sources
CVE-2026-46011 · NVD
BELL-CVE-2026-46011 · OSV
DEBIAN-CVE-2026-46011 · OSV
UBUNTU-CVE-2026-46011 · OSV
CVE-2026-46011 · OSV
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