CVE-2021-47586— net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup
Affected Version Matrix 6
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I. Basic Information for CVE-2021-47586
Vulnerability Information
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Vulnerability Title
net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup
Source: NVD (National Vulnerability Database)
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: net: stmmac: dwmac-rk: fix oob read in rk_gmac_setup KASAN reports an out-of-bounds read in rk_gmac_setup on the line: while (ops->regs[i]) { This happens for most platforms since the regs flexible array member is empty, so the memory after the ops structure is being read here. It seems that mostly this happens to contain zero anyway, so we get lucky and everything still works. To avoid adding redundant data to nearly all the ops structures, add a new flag to indicate whether the regs field is valid and avoid this loop when it is not.
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net stmmac dwmac-rk中存在越界读取。
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-2021-47586
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Other References for CVE-2021-47586 (2)
Same Patch Batch · Linux · 2024-06-19 · 122 CVEs total
| CVE-2024-38612 | ipv6: sr: fix invalid unregister error path | |
| CVE-2021-47584 | iocost: Fix divide-by-zero on donation from low hweight cgroup | |
| CVE-2021-47582 | USB: core: Make do_proc_control() and do_proc_bulk() killable | |
| CVE-2021-47583 | media: mxl111sf: change mutex_init() location | |
| CVE-2021-47579 | ovl: fix warning in ovl_create_real() | |
| CVE-2021-47580 | scsi: scsi_debug: Fix type in min_t to avoid stack OOB | |
| CVE-2021-47578 | scsi: scsi_debug: Don't call kcalloc() if size arg is zero | |
| CVE-2021-47576 | scsi: scsi_debug: Sanity check block descriptor length in resp_mode_select() | |
| CVE-2021-47577 | io-wq: check for wq exit after adding new worker task_work | |
| CVE-2024-38617 | kunit/fortify: Fix mismatched kvalloc()/vfree() usage | |
| CVE-2024-38618 | ALSA: timer: Set lower bound of start tick time | |
| CVE-2024-38616 | wifi: carl9170: re-fix fortified-memset warning | |
| CVE-2024-38615 | cpufreq: exit() callback is optional | |
| CVE-2024-38614 | openrisc: traps: Don't send signals to kernel mode threads | |
| CVE-2024-38613 | m68k: Fix spinlock race in kernel thread creation | |
| CVE-2024-38611 | media: i2c: et8ek8: Don't strip remove function when driver is builtin | |
| CVE-2024-38603 | drivers/perf: hisi: hns3: Actually use devm_add_action_or_reset() | |
| CVE-2024-38601 | ring-buffer: Fix a race between readers and resize checks | |
| CVE-2024-38600 | ALSA: Fix deadlocks with kctl removals at disconnection | |
| CVE-2024-38602 | ax25: Fix reference count leak issues of ax25_dev |
Showing top 20 of 122 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Linux
- CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans - 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
Same vendor: Linux
- CVE-2026-46300
net: skbuff: preserve shared-frag marker during coalescing - CVE-2026-43503
net: skbuff: propagate shared-frag marker through frag-trans - 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
V. Comments for CVE-2021-47586
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