CVE-2025-21712 — Improper Input Validation in Linux

CWE-20 — Improper Input ValidationCWE-200 — Sensitive Information Exposure26 documents8 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 93.67%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
9
LinuxLinux KernelDebian Linux+6 more
Timeline
PublishedFeb 27
Latest updateSep 3

Description

In the Linux kernel, the following vulnerability has been resolved: md/md-bitmap: Synchronize bitmap_get_stats() with bitmap lifetime After commit ec6bb299c7c3 ("md/md-bitmap: add 'sync_size' into struct md_bitmap_stats"), following panic is reported: Oops: general protection fault, probably for non-canonical address RIP: 0010:bitmap_get_stats+0x2b/0xa0 Call Trace: md_seq_show+0x2d2/0x5b0 seq_read_iter+0x2b9/0x470 seq_read+0x12f/0x180 proc_reg_read+0x57/0xb0 vfs_read+0xf6/0x380 ksys_read+0x6…

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages11 packages

▶NVDlinux/linux_kernel2.6.13 — 6.1.130+3
▶Debianlinux/linux_kernel< 6.1.133-1+2
▶Ubuntulinux/linux_kernel< 6.8.0-78.78

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

11
OSV
linux-azure, linux-azure-6.8, linux-azure-nvidia vulnerabilities↗2025-09-03
▶
OSV
linux-gke, linux-hwe-6.8, linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency, linux-raspi vulnerabilities↗2025-08-28
▶
OSV
linux-raspi-realtime vulnerabilities↗2025-08-26
▶
OSV
linux-oracle, linux-oracle-6.8 vulnerabilities↗2025-08-21
▶
OSV
linux-aws-6.8, linux-gcp, linux-gcp-6.8, linux-gkeop, linux-ibm, linux-ibm-6.8 vulnerabilities↗2025-08-20
▶

📋Vendor Advisories

14
Ubuntu
Linux kernel (Azure) vulnerabilities↗2025-09-03
▶
Ubuntu
Linux kernel vulnerabilities↗2025-08-28
▶
Ubuntu
Linux kernel (Raspberry Pi Real-time) vulnerabilities↗2025-08-26
▶
Ubuntu
Linux kernel (Oracle) vulnerabilities↗2025-08-21
▶
Ubuntu
Linux kernel vulnerabilities↗2025-08-20
▶