CVE-2021-47645— media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com
Affected Version Matrix 15
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 8dce4b265a5357731058f69645840dabc718c687 | affected |
61c3b19f7b9eb7c7838fd35f86566230fefd6550< bafec1a6ba4b187a7fcdcfce0faebdc623d4ef8e | affected | ||
61c3b19f7b9eb7c7838fd35f86566230fefd6550< 7e76f3ed7ab2ae026c6ef9cc23096a7554af8c52 | affected | ||
61c3b19f7b9eb7c7838fd35f86566230fefd6550< 20db2ed1e2f9fcd417fa67853e5154f0c2537d6c | affected | ||
61c3b19f7b9eb7c7838fd35f86566230fefd6550< 20811bbe685ca3eddd34b0c750860427d7030910 | affected | ||
61c3b19f7b9eb7c7838fd35f86566230fefd6550< e3b86f4e558cea9eed71d894df2f19b10d60a207 | affected | ||
2.6.12 | affected | ||
5.10 | affected | ||
| … +7 more rows | |||
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I. Basic Information for CVE-2021-47645
Vulnerability Information
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Vulnerability Title
media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: media: staging: media: zoran: calculate the right buffer number for zoran_reap_stat_com On the case tmp_dcim=1, the index of buffer is miscalculated. This generate a NULL pointer dereference later. So let's fix the calcul and add a check to prevent this to reappear.
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zoran_reap_stat_com函数中的缓冲区编号计算错误。
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-2021-47645
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patch · 5
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-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects - CVE-2026-43499
rtmutex: Use waiter::task instead of current in remove_waite - CVE-2026-43497
fbdev: udlfb: add vm_ops to dlfb_ops_mmap to prevent use-aft
Same vendor: Linux
- CVE-2026-43502
net/rds: handle zerocopy send cleanup before the message is - CVE-2026-43501
ipv6: rpl: reserve mac_len headroom when recompressed SRH gr - CVE-2026-43498
accel/ivpu: Disallow re-exporting imported GEM objects - CVE-2026-43499
rtmutex: Use waiter::task instead of current in remove_waite - CVE-2026-43497
fbdev: udlfb: add vm_ops to dlfb_ops_mmap to prevent use-aft
V. Comments for CVE-2021-47645
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