CVE-2026-53382
media: vidtv: fix NULL pointer dereference in vidtv_mux_push_si
Description
In the Linux kernel, the following vulnerability has been resolved: media: vidtv: fix NULL pointer dereference in vidtv_mux_push_si syzbot reported a general protection fault in vidtv_psi_ts_psi_write_into [1]. vidtv_mux_get_pid_ctx() can return NULL, but vidtv_mux_push_si() does not check for this before dereferencing the returned pointer to access the continuity counter. This leads to a general protection fault when accessing a near-NULL address. The root cause is that vidtv_mux_pid_ctx_init() does not check the return value of vidtv_mux_create_pid_ctx_once() for PMT section PIDs. If the allocation fails, the PID context is never created, but init returns success. The subsequent vidtv_mux_push_si() call then gets NULL from vidtv_mux_get_pid_ctx() and crashes. Fix both the root cause (add error check in vidtv_mux_pid_ctx_init for PMT PIDs) and add defensive NULL checks in vidtv_mux_push_si for all vidtv_mux_get_pid_ctx() calls. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] Workqueue: events vidtv_mux_tick RIP: 0010:vidtv_psi_ts_psi_write_into+0x54a/0xbc0 drivers/media/test-drivers/vidtv/vidtv_psi.c:197 Call Trace: <TASK> vidtv_psi_table_header_write_into drivers/media/test-drivers/vidtv/vidtv_psi.c:799 [inline] vidtv_psi_pmt_write_into+0x3b2/0xa70 drivers/media/test-drivers/vidtv/vidtv_psi.c:1231 vidtv_mux_push_si+0x932/0xe80 drivers/media/test-drivers/vidtv/vidtv_mux.c:196 vidtv_mux_tick+0xe9b/0x1480 drivers/media/test-drivers/vidtv/vidtv_mux.c:408
INFO
Published Date :
July 19, 2026, 12:16 p.m.
Last Modified :
July 19, 2026, 12:16 p.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-53382
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Add error check for PID context creation.
- Add NULL checks in vidtv_mux_push_si.
- Apply provided kernel patch.
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-2026-53382.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-53382 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-2026-53382
weaknesses.
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-2026-53382 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-53382 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.
-
New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Jul. 19, 2026
Action Type Old Value New Value Added Affected [{'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': 'f90cf6079bf67988f8b1ad1ade70fc89d0080905', 'lessThan': '455bc12e7b73ab5a2dfcb47822e91e772bc6c42e', 'versionType': 'git'}, {'status': 'affected', 'version': 'f90cf6079bf67988f8b1ad1ade70fc89d0080905', 'lessThan': 'f0f5a1d7056980a0d512456fdb370cfb72bba86a', 'versionType': 'git'}, {'status': 'affected', 'version': 'f90cf6079bf67988f8b1ad1ade70fc89d0080905', 'lessThan': '6df7e16d4f742c80add58995a6e69385b97aa9e6', 'versionType': 'git'}, {'status': 'affected', 'version': 'f90cf6079bf67988f8b1ad1ade70fc89d0080905', 'lessThan': 'cd923dadefadb9671b5ac341b672ff424d429c39', 'versionType': 'git'}, {'status': 'affected', 'version': 'f90cf6079bf67988f8b1ad1ade70fc89d0080905', 'lessThan': '353d9578951dd38bc9679308f5b618ceed1f20fa', 'versionType': 'git'}, {'status': 'affected', 'version': 'f90cf6079bf67988f8b1ad1ade70fc89d0080905', 'lessThan': 'f965cf22dda7f512f4922415894c3e528269a4ae', 'versionType': 'git'}, {'status': 'affected', 'version': 'f90cf6079bf67988f8b1ad1ade70fc89d0080905', 'lessThan': 'b28b12be6e8910489e6800ed93ea4d41dfe19683', 'versionType': 'git'}, {'status': 'affected', 'version': 'f90cf6079bf67988f8b1ad1ade70fc89d0080905', 'lessThan': '232e4b313ea342672edf8947e067c0de4328405b', 'versionType': 'git'}, {'status': 'affected', 'version': 'f90cf6079bf67988f8b1ad1ade70fc89d0080905', 'lessThan': '7d8bf3d8f91073f4db347ed3aa6302b56107499c', 'versionType': 'git'}], 'programFiles': ['drivers/media/test-drivers/vidtv/vidtv_mux.c'], 'defaultStatus': 'unaffected'}, {'repo': 'https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git', 'vendor': 'Linux', 'product': 'Linux', 'versions': [{'status': 'affected', 'version': '5.10'}, {'status': 'unaffected', 'version': '0', 'lessThan': '5.10', 'versionType': 'semver'}, {'status': 'unaffected', 'version': '5.10.260', 'versionType': 'semver', 'lessThanOrEqual': '5.10.*'}, {'status': 'unaffected', 'version': '5.15.211', 'versionType': 'semver', 'lessThanOrEqual': '5.15.*'}, {'status': 'unaffected', 'version': '6.1.177', 'versionType': 'semver', 'lessThanOrEqual': '6.1.*'}, {'status': 'unaffected', 'version': '6.6.144', 'versionType': 'semver', 'lessThanOrEqual': '6.6.*'}, {'status': 'unaffected', 'version': '6.12.95', 'versionType': 'semver', 'lessThanOrEqual': '6.12.*'}, {'status': 'unaffected', 'version': '6.18.37', 'versionType': 'semver', 'lessThanOrEqual': '6.18.*'}, {'status': 'unaffected', 'version': '7.0.14', 'versionType': 'semver', 'lessThanOrEqual': '7.0.*'}, {'status': 'unaffected', 'version': '7.1.2', 'versionType': 'semver', 'lessThanOrEqual': '7.1.*'}, {'status': 'unaffected', 'version': '7.2-rc1', 'versionType': 'original_commit_for_fix', 'lessThanOrEqual': '*'}], 'programFiles': ['drivers/media/test-drivers/vidtv/vidtv_mux.c'], 'defaultStatus': 'affected'}] Added Description In the Linux kernel, the following vulnerability has been resolved: media: vidtv: fix NULL pointer dereference in vidtv_mux_push_si syzbot reported a general protection fault in vidtv_psi_ts_psi_write_into [1]. vidtv_mux_get_pid_ctx() can return NULL, but vidtv_mux_push_si() does not check for this before dereferencing the returned pointer to access the continuity counter. This leads to a general protection fault when accessing a near-NULL address. The root cause is that vidtv_mux_pid_ctx_init() does not check the return value of vidtv_mux_create_pid_ctx_once() for PMT section PIDs. If the allocation fails, the PID context is never created, but init returns success. The subsequent vidtv_mux_push_si() call then gets NULL from vidtv_mux_get_pid_ctx() and crashes. Fix both the root cause (add error check in vidtv_mux_pid_ctx_init for PMT PIDs) and add defensive NULL checks in vidtv_mux_push_si for all vidtv_mux_get_pid_ctx() calls. [1] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007] Workqueue: events vidtv_mux_tick RIP: 0010:vidtv_psi_ts_psi_write_into+0x54a/0xbc0 drivers/media/test-drivers/vidtv/vidtv_psi.c:197 Call Trace: <TASK> vidtv_psi_table_header_write_into drivers/media/test-drivers/vidtv/vidtv_psi.c:799 [inline] vidtv_psi_pmt_write_into+0x3b2/0xa70 drivers/media/test-drivers/vidtv/vidtv_psi.c:1231 vidtv_mux_push_si+0x932/0xe80 drivers/media/test-drivers/vidtv/vidtv_mux.c:196 vidtv_mux_tick+0xe9b/0x1480 drivers/media/test-drivers/vidtv/vidtv_mux.c:408 Added Reference https://git.kernel.org/stable/c/232e4b313ea342672edf8947e067c0de4328405b Added Reference https://git.kernel.org/stable/c/353d9578951dd38bc9679308f5b618ceed1f20fa Added Reference https://git.kernel.org/stable/c/455bc12e7b73ab5a2dfcb47822e91e772bc6c42e Added Reference https://git.kernel.org/stable/c/6df7e16d4f742c80add58995a6e69385b97aa9e6 Added Reference https://git.kernel.org/stable/c/7d8bf3d8f91073f4db347ed3aa6302b56107499c Added Reference https://git.kernel.org/stable/c/b28b12be6e8910489e6800ed93ea4d41dfe19683 Added Reference https://git.kernel.org/stable/c/cd923dadefadb9671b5ac341b672ff424d429c39 Added Reference https://git.kernel.org/stable/c/f0f5a1d7056980a0d512456fdb370cfb72bba86a Added Reference https://git.kernel.org/stable/c/f965cf22dda7f512f4922415894c3e528269a4ae