kernel: tty: Fix out-of-bound vmalloc access in imageblit

A vulnerability was found in the Linux kernel's tty subsystem within the imageblit function when a userspace program performs an ioctl operation with the FBIOPUTVSCREENINFO command, passing a fbvarscreeninfo structure with limited fields. If the structure’s values remain unchanged from a previous...

SUSE CVE-2024-50037

In the Linux kernel, the following vulnerability has been resolved: drm/fbdev-dma: Only cleanup deferred I/O if necessary Commit 5a498d4d06d6 "drm/fbdev-dma: Only install deferred I/O if necessary" initializes deferred I/O only if it is used. drmfbdevdmafbdestroy however calls fbdeferrediocleanup...

UBUNTU-CVE-2024-50037

In the Linux kernel, the following vulnerability has been resolved: drm/fbdev-dma: Only cleanup deferred I/O if necessary Commit 5a498d4d06d6 "drm/fbdev-dma: Only install deferred I/O if necessary" initializes deferred I/O only if it is used. drmfbdevdmafbdestroy however calls fbdeferrediocleanup...

UBUNTU-CVE-2024-50048

In the Linux kernel, the following vulnerability has been resolved: fbcon: Fix a NULL pointer dereference issue in fbconputcs syzbot has found a NULL pointer dereference bug in fbcon. Here is the simplified C reproducer: struct param uint8t type; struct tioclselection ts; ; int main struct...

CVE-2024-50048 fbcon: Fix a NULL pointer dereference issue in fbcon_putcs

In the Linux kernel, the following vulnerability has been resolved: fbcon: Fix a NULL pointer dereference issue in fbconputcs syzbot has found a NULL pointer dereference bug in fbcon. Here is the simplified C reproducer: struct param uint8t type; struct tioclselection ts; ; int main struct...

DEBIAN-CVE-2024-49924

In the Linux kernel, the following vulnerability has been resolved: fbdev: pxafb: Fix possible use after free in pxafbtask In the pxafbprobe function, it calls the pxafbinitfbinfo function, after which &fbi-task is associated with pxafbtask. Moreover, within this pxafbinitfbinfo function, the...

AZL-51523 CVE-2024-49924 affecting package kernel for versions less than 5.15.173.1-1

In the Linux kernel, the following vulnerability has been resolved: fbdev: pxafb: Fix possible use after free in pxafbtask In the pxafbprobe function, it calls the pxafbinitfbinfo function, after which &fbi-task is associated with pxafbtask. Moreover, within this pxafbinitfbinfo function, the...

SUSE CVE-2024-47752

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Fix H264 stateless decoder smatch warning Fix a smatch static checker warning on vdech264reqif.c. Which leads to a kernel crash when fb is NULL...

SUSE CVE-2024-47754

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Fix H264 multi stateless decoder smatch warning Fix a smatch static checker warning on vdech264reqmultiif.c. Which leads to a kernel crash when fb is NULL...

DEBIAN-CVE-2024-47752

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Fix H264 stateless decoder smatch warning Fix a smatch static checker warning on vdech264reqif.c. Which leads to a kernel crash when fb is NULL...

DEBIAN-CVE-2024-47753

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Fix VP8 stateless decoder smatch warning Fix a smatch static checker warning on vdecvp8reqif.c. Which leads to a kernel crash when fb is NULL...

AZL-50670 CVE-2024-47754 affecting package kernel for versions less than 6.6.56.1-5

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Fix H264 multi stateless decoder smatch warning Fix a smatch static checker warning on vdech264reqmultiif.c. Which leads to a kernel crash when fb is NULL...

AZL-50661 CVE-2024-47753 affecting package kernel for versions less than 6.6.56.1-5

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Fix VP8 stateless decoder smatch warning Fix a smatch static checker warning on vdecvp8reqif.c. Which leads to a kernel crash when fb is NULL...

UBUNTU-CVE-2024-47753

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Fix VP8 stateless decoder smatch warning Fix a smatch static checker warning on vdecvp8reqif.c. Which leads to a kernel crash when fb is NULL...

UBUNTU-CVE-2024-47752

In the Linux kernel, the following vulnerability has been resolved: media: mediatek: vcodec: Fix H264 stateless decoder smatch warning Fix a smatch static checker warning on vdech264reqif.c. Which leads to a kernel crash when fb is NULL...

drm/amd/display: avoid using null object of framebuffer

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drm/msm/dpu: cleanup FB if dpu_format_populate_layout fails

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Ubuntu 20.04 LTS : Linux kernel vulnerabilities (USN-7009-2)

The remote Ubuntu 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7009-2 advisory. Chenyuan Yang discovered that the CEC driver driver in the Linux kernel contained a use-after-free vulnerability. A local attacker could use this to caus...

kernel: tty: Fix out-of-bound vmalloc access in imageblit

A vulnerability was found in the Linux kernel's tty subsystem within the imageblit function when a userspace program performs an ioctl operation with the FBIOPUTVSCREENINFO command, passing a fbvarscreeninfo structure with limited fields. If the structure’s values remain unchanged from a previous...

kernel: drm/amdgpu: avoid using null object of framebuffer

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: avoid using null object of framebuffer Instead of using state-fb-obj0 directly, get object from framebuffer by calling drmgemfbgetobj and return error code when object is null to avoid using null object of framebuffer...