CVE-2024-50156
Android MSM DRM Null Pointer Dereference Vulnerability
Description
In the Linux kernel, the following vulnerability has been resolved: drm/msm: Avoid NULL dereference in msm_disp_state_print_regs() If the allocation in msm_disp_state_dump_regs() failed then `block->state` can be NULL. The msm_disp_state_print_regs() function _does_ have code to try to handle it with: if (*reg) dump_addr = *reg; ...but since "dump_addr" is initialized to NULL the above is actually a noop. The code then goes on to dereference `dump_addr`. Make the function print "Registers not stored" when it sees a NULL to solve this. Since we're touching the code, fix msm_disp_state_print_regs() not to pointlessly take a double-pointer and properly mark the pointer as `const`. Patchwork: https://patchwork.freedesktop.org/patch/619657/
INFO
Published Date :
Nov. 7, 2024, 10:15 a.m.
Last Modified :
Nov. 20, 2024, 1:58 p.m.
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
1.8
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2024-50156.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-50156 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-50156 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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Initial Analysis by [email protected]
Nov. 20, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://git.kernel.org/stable/c/293f53263266bc4340d777268ab4328a97f041fa No Types Assigned https://git.kernel.org/stable/c/293f53263266bc4340d777268ab4328a97f041fa Patch Changed Reference Type https://git.kernel.org/stable/c/42cf045086feae77b212f0f66e742b91a5b566b7 No Types Assigned https://git.kernel.org/stable/c/42cf045086feae77b212f0f66e742b91a5b566b7 Patch Changed Reference Type https://git.kernel.org/stable/c/563aa81fd66a4e7e6e551a0e02bcc23957cafe2f No Types Assigned https://git.kernel.org/stable/c/563aa81fd66a4e7e6e551a0e02bcc23957cafe2f Patch Changed Reference Type https://git.kernel.org/stable/c/e8e9f2a12a6214080c8ea83220a596f6e1dedc6c No Types Assigned https://git.kernel.org/stable/c/e8e9f2a12a6214080c8ea83220a596f6e1dedc6c Patch Changed Reference Type https://git.kernel.org/stable/c/f7ad916273483748582d97cfa31054ccb19224f3 No Types Assigned https://git.kernel.org/stable/c/f7ad916273483748582d97cfa31054ccb19224f3 Patch Added CWE NIST CWE-476 Added CPE Configuration OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.14 up to (excluding) 5.15.170 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 5.16 up to (excluding) 6.1.115 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.2 up to (excluding) 6.6.59 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 6.7 up to (excluding) 6.11.6 *cpe:2.3:o:linux:linux_kernel:6.12:rc1:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc2:*:*:*:*:*:* *cpe:2.3:o:linux:linux_kernel:6.12:rc3:*:*:*:*:*:* -
CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Nov. 07, 2024
Action Type Old Value New Value Added Description In the Linux kernel, the following vulnerability has been resolved: drm/msm: Avoid NULL dereference in msm_disp_state_print_regs() If the allocation in msm_disp_state_dump_regs() failed then `block->state` can be NULL. The msm_disp_state_print_regs() function _does_ have code to try to handle it with: if (*reg) dump_addr = *reg; ...but since "dump_addr" is initialized to NULL the above is actually a noop. The code then goes on to dereference `dump_addr`. Make the function print "Registers not stored" when it sees a NULL to solve this. Since we're touching the code, fix msm_disp_state_print_regs() not to pointlessly take a double-pointer and properly mark the pointer as `const`. Patchwork: https://patchwork.freedesktop.org/patch/619657/ Added Reference kernel.org https://git.kernel.org/stable/c/42cf045086feae77b212f0f66e742b91a5b566b7 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/e8e9f2a12a6214080c8ea83220a596f6e1dedc6c [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/f7ad916273483748582d97cfa31054ccb19224f3 [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/563aa81fd66a4e7e6e551a0e02bcc23957cafe2f [No types assigned] Added Reference kernel.org https://git.kernel.org/stable/c/293f53263266bc4340d777268ab4328a97f041fa [No types assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-50156 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2024-50156
weaknesses.