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    <link>https://vulnerability.circl.lu</link>
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    <lastBuildDate>Thu, 01 Oct 2026 08:37:56 +0000</lastBuildDate>
    <item>
      <title>CVE-2024-56577 — media: mtk-jpeg: Fix null-ptr-deref during unload module</title>
      <link>https://vulnerability.circl.lu/vuln/cve-2024-56577</link>
      <description>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;media: mtk-jpeg: Fix null-ptr-deref during unload module&lt;/p&gt;
&lt;p&gt;The workqueue should be destroyed in mtk_jpeg_core.c since commit
09aea13ecf6f (&amp;#34;media: mtk-jpeg: refactor some variables&amp;#34;), otherwise
the below calltrace can be easily triggered.&lt;/p&gt;
&lt;p&gt;[  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
[  677.8…&lt;/p&gt;</description>
      <content:encoded>&lt;p&gt;&lt;strong&gt;Affected:&lt;/strong&gt; Linux&lt;/p&gt;
&lt;p&gt;In the Linux kernel, the following vulnerability has been resolved:&lt;/p&gt;
&lt;p&gt;media: mtk-jpeg: Fix null-ptr-deref during unload module&lt;/p&gt;
&lt;p&gt;The workqueue should be destroyed in mtk_jpeg_core.c since commit
09aea13ecf6f (&amp;#34;media: mtk-jpeg: refactor some variables&amp;#34;), otherwise
the below calltrace can be easily triggered.&lt;/p&gt;
&lt;p&gt;[  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
[  677.8…&lt;/p&gt;</content:encoded>
      <guid isPermaLink="false">https://vulnerability.circl.lu/vuln/cve-2024-56577</guid>
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