In the Linux kernel, the following vulnerability has been resolved:
media: vidtv: fix NULL pointer dereference in vidtv_channel_pmt_match_sections
syzbot reported a general protection fault in vidtv_psi_desc_assign [1].
vidtv_psi_pmt_stream_init() can return NULL on memory allocation
failure, but vidtv_channel_pmt_match_sections() does not check for
this. When tail is NULL, the subsequent call to
vidtv_psi_desc_assign(&tail->descriptor, desc) dereferences a NULL
pointer offset, causing a general protection fault.
Add a NULL check after vidtv_psi_pmt_stream_init(). On failure, clean
up the already-allocated stream chain and return.
[1]
Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] SMP KASAN PTI
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
RIP: 0010:vidtv_psi_desc_assign+0x24/0x90 drivers/media/test-drivers/vidtv/vidtv_psi.c:629
Call Trace:
<TASK>
vidtv_channel_pmt_match_sections drivers/media/test-drivers/vidtv/vidtv_channel.c:349 [inline]
vidtv_channel_si_init+0x1445/0x1a50 drivers/media/test-drivers/vidtv/vidtv_channel.c:479
vidtv_mux_init+0x526/0xbe0 drivers/media/test-drivers/vidtv/vidtv_mux.c:519
vidtv_start_streaming drivers/media/test-drivers/vidtv/vidtv_bridge.c:194 [inline]
vidtv_start_feed+0x33e/0x4d0 drivers/media/test-drivers/vidtv/vidtv_bridge.c:239
References
Configurations
Configuration 1 (hide)
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History
01 Jun 2026, 17:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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29 Apr 2026, 20:12
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-476 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
| CPE | cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* | |
| First Time |
Linux
Linux linux Kernel |
|
| References | () https://git.kernel.org/stable/c/07c1e474cf9acf777f09d14a8f8dfcef5b84e46f - Patch | |
| References | () https://git.kernel.org/stable/c/2dff11fb5098ae453651f8f77e94ad499c078022 - Patch | |
| References | () https://git.kernel.org/stable/c/b7efb4c94797c504a1c678edb48c2aa311d3309f - Patch | |
| References | () https://git.kernel.org/stable/c/b832cfd516b8504e95884622cee60bf9a39b7945 - Patch | |
| References | () https://git.kernel.org/stable/c/e589de36da106ef739ba98f66f5a5c2023370706 - Patch | |
| References | () https://git.kernel.org/stable/c/f8e1fc918a9fe67103bcda01d20d745f264d00a7 - Patch |
27 Apr 2026, 14:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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27 Apr 2026, 12:16
| Type | Values Removed | Values Added |
|---|---|---|
| References |
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24 Apr 2026, 15:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-04-24 15:16
Updated : 2026-06-17 10:34
NVD link : CVE-2026-31599
Mitre link : CVE-2026-31599
CVE.ORG link : CVE-2026-31599
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-476
NULL Pointer Dereference