// For flags

CVE-2024-56577

media: mtk-jpeg: Fix null-ptr-deref during unload module

Severity Score

7.1
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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 ]---

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 ]---

*Credits: N/A
CVSS Scores
Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High
Attack Vector
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2024-12-27 CVE Reserved
  • 2024-12-27 CVE Published
  • 2024-12-27 CVE Updated
  • 2024-12-28 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 6.4 < 6.6.64
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.4 < 6.6.64"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 6.4 < 6.12.4
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.4 < 6.12.4"
en
Affected
Linux
Search vendor "Linux"
 Linux Kernel
Search vendor "Linux" for product "Linux Kernel"
 >= 6.4 < 6.13-rc1
Search vendor "Linux" for product "Linux Kernel" and version " >= 6.4 < 6.13-rc1"
en
Affected