CVE-2022-49421— video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup
Affected Version Matrix 20
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | d10715be03bd8bad59ddc50236cb140c3bd73c7b< 6c92711db7c90f78e0b67ac2a8944d0fe7e12d83 | affected |
d10715be03bd8bad59ddc50236cb140c3bd73c7b< 2e2e2c71b2642289438392edbf5d08cdbc0b138b | affected | ||
d10715be03bd8bad59ddc50236cb140c3bd73c7b< 51eb1bb6baeb478538dd4ec6459fd68c44a855b1 | affected | ||
d10715be03bd8bad59ddc50236cb140c3bd73c7b< 8db59df7f5826e104db82cfddbf22a33a151193e | affected | ||
d10715be03bd8bad59ddc50236cb140c3bd73c7b< c1c4405222b6fc98c16e8c2aa679c14e41d81465 | affected | ||
d10715be03bd8bad59ddc50236cb140c3bd73c7b< f2dfb4ab887d67be7d0892ba041d3c8d738d3356 | affected | ||
d10715be03bd8bad59ddc50236cb140c3bd73c7b< bbb2a24e863b6a10129546a0a4ceea2f07deec39 | affected | ||
d10715be03bd8bad59ddc50236cb140c3bd73c7b< 38d245cebf545338a6bc1c7762023de3fbecd7b7 | affected | ||
| … +12 more rows | |||
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I. Basic Information for CVE-2022-49421
Vulnerability Information
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Vulnerability Title
video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: video: fbdev: clcdfb: Fix refcount leak in clcdfb_of_vram_setup of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于clcdfb_of_vram_setup中的引用计数泄漏。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
II. Public POCs for CVE-2022-49421
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2022-49421 (9)
Same Patch Batch · Linux · 2025-02-26 · 706 CVEs total
| CVE-2022-49498 | ALSA: pcm: Check for null pointer of pointer substream before dereferencing it | |
| CVE-2022-49486 | ASoC: fsl: Fix refcount leak in imx_sgtl5000_probe | |
| CVE-2022-49488 | drm/msm/mdp5: Return error code in mdp5_mixer_release when deadlock is detected | |
| CVE-2022-49489 | drm/msm/disp/dpu1: set vbif hw config to NULL to avoid use after memory free during pm run | |
| CVE-2022-49490 | drm/msm/mdp5: Return error code in mdp5_pipe_release when deadlock is detected | |
| CVE-2022-49491 | drm/rockchip: vop: fix possible null-ptr-deref in vop_bind() | |
| CVE-2022-49492 | nvme-pci: fix a NULL pointer dereference in nvme_alloc_admin_tags | |
| CVE-2022-49493 | ASoC: rt5645: Fix errorenous cleanup order | |
| CVE-2022-49494 | mtd: rawnand: cadence: fix possible null-ptr-deref in cadence_nand_dt_probe() | |
| CVE-2022-49495 | drm/msm/hdmi: check return value after calling platform_get_resource_byname() | |
| CVE-2022-49497 | net: remove two BUG() from skb_checksum_help() | |
| CVE-2022-49496 | media: mediatek: vcodec: prevent kernel crash when rmmod mtk-vcodec-dec.ko | |
| CVE-2022-49502 | media: rga: fix possible memory leak in rga_probe | |
| CVE-2022-49507 | regulator: da9121: Fix uninit-value in da9121_assign_chip_model() | |
| CVE-2022-49508 | HID: elan: Fix potential double free in elan_input_configured | |
| CVE-2022-49506 | drm/mediatek: Add vblank register/unregister callback functions | |
| CVE-2022-49504 | scsi: lpfc: Inhibit aborts if external loopback plug is inserted | |
| CVE-2022-49505 | NFC: NULL out the dev->rfkill to prevent UAF | |
| CVE-2022-49501 | usbnet: Run unregister_netdev() before unbind() again | |
| CVE-2022-49500 | wl1251: dynamically allocate memory used for DMA |
Showing top 20 of 706 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-45836
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndti - CVE-2026-45835
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_conne - CVE-2026-45834
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_cha - CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans
Same vendor: Linux
- CVE-2026-45836
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_get_sndti - CVE-2026-45835
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_new_conne - CVE-2026-45834
Bluetooth: L2CAP: Fix null-ptr-deref in l2cap_sock_state_cha - CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans
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