CVE-2021-47652
video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe()
Time Line
Published
2024-03-19
Updated
2024-03-19
Firt exploit
2024-03-19
Overview
Descriptions (1)
MITRE
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SSVC
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KEV
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EPSS
Affected Products (-)
Vendors (1)
linux
Products (1)
linux_kernel
Versions (9)
>= 3.2 < 4.9.311, >= 3.2 < 4.14.276, >= 3.2 < 4.19.238, >= 3.2 < 5.4.189, >= 3.2 < 5.10.110, >= 3.2 < 5.15.33, >= 3.2 < 5.16.19, >= 3.2 < 5.17.2, >= 3.2 < 5.18
Intel Resources (-)
Advisories (-)
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Exploits (-)
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References (10)
General (1)
kernel
Exploits & POcs (-)
Patches (9)
kernel
Advisories (-)
Summary
Descriptions
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: smscufx: Fix null-ptr-deref in ufx_usb_probe() I got a null-ptr-deref report: BUG: kernel NULL pointer dereference, address: 0000000000000000
...
RIP: 0010:fb_destroy_modelist+0x38/0x100
...
Call Trace: ufx_usb_probe.cold+0x2b5/0xac1 [smscufx] usb_probe_interface+0x1aa/0x3c0 [usbcore] really_probe+0x167/0x460
... ret_from_fork+0x1f/0x30 If fb_alloc_cmap() fails in ufx_usb_probe(), fb_destroy_modelist() will
be called to destroy modelist in the error handling path. But modelist
has not been initialized yet, so it will result in null-ptr-deref. Initialize modelist before calling fb_alloc_cmap() to fix this bug.
*Credits:
N/A
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Timeline
- 2025-02-26 CVE Reserved
- 2025-02-26 CVE Published
- 2025-02-26 CVE Updated
- ---------- EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
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References (10)
| URL | Tag | Source |
|---|---|---|
| https://git.kernel.org/stable/c/3c8a63e22a0802fd56380f6ab305b419f18eb6f5 | Vuln. Introduced |
| URL | Date | SRC |
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| URL | Date | SRC |
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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" | >= 3.2 < 4.9.311 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 4.9.311" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.2 < 4.14.276 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 4.14.276" | en |
Affected
| ||||||
| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.2 < 4.19.238 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 4.19.238" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.2 < 5.4.189 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 5.4.189" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.2 < 5.10.110 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 5.10.110" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.2 < 5.15.33 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 5.15.33" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.2 < 5.16.19 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 5.16.19" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.2 < 5.17.2 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 5.17.2" | en |
Affected
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| Linux Search vendor "Linux" | Linux Kernel Search vendor "Linux" for product "Linux Kernel" | >= 3.2 < 5.18 Search vendor "Linux" for product "Linux Kernel" and version " >= 3.2 < 5.18" | en |
Affected
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