Vulnerability Database

318,756

Total vulnerabilities in the database

CVE-2025-38451

In the Linux kernel, the following vulnerability has been resolved:

md/md-bitmap: fix GPF in bitmap_get_stats()

The commit message of commit 6ec1f0239485 ("md/md-bitmap: fix stats collection for external bitmaps") states:

Remove the external bitmap check as the statistics should be available regardless of bitmap storage location. Return -EINVAL only for invalid bitmap with no storage (neither in superblock nor in external file).

But, the code does not adhere to the above, as it does only check for a valid super-block for "internal" bitmaps. Hence, we observe:

Oops: GPF, probably for non-canonical address 0x1cd66f1f40000028 RIP: 0010:bitmap_get_stats+0x45/0xd0 Call Trace:

seq_read_iter+0x2b9/0x46a seq_read+0x12f/0x180 proc_reg_read+0x57/0xb0 vfs_read+0xf6/0x380 ksys_read+0x6d/0xf0 do_syscall_64+0x8c/0x1b0 entry_SYSCALL_64_after_hwframe+0x76/0x7e

We fix this by checking the existence of a super-block for both the internal and external case.

  • Published: Jul 25, 2025
  • Updated: Dec 23, 2025
  • CVE: CVE-2025-38451
  • Severity: Medium
  • Exploit:

CVSS v3:

  • Severity: Medium
  • Score: 5.5
  • AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

No CWE or OWASP classifications available.

Software From Fixed in
linux / linux_kernel 6.1.135 6.1.146
linux / linux_kernel 6.6.88 6.6.99
linux / linux_kernel 6.12.25 6.12.39
linux / linux_kernel 6.14.4 6.15
linux / linux_kernel 6.15.1 6.15.7
linux / linux_kernel 6.15 6.15.x
linux / linux_kernel 6.15-rc3 6.15-rc3.x
linux / linux_kernel 6.15-rc4 6.15-rc4.x
linux / linux_kernel 6.15-rc5 6.15-rc5.x
linux / linux_kernel 6.15-rc6 6.15-rc6.x
linux / linux_kernel 6.15-rc7 6.15-rc7.x
linux / linux_kernel 6.16-rc1 6.16-rc1.x
linux / linux_kernel 6.16-rc2 6.16-rc2.x
linux / linux_kernel 6.16-rc3 6.16-rc3.x
linux / linux_kernel 6.16-rc4 6.16-rc4.x
linux / linux_kernel 6.16-rc5 6.16-rc5.x
debian / debian_linux 11.0 11.0.x