CVE-2023-53210
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-53210
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-53210.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-53210
- Downstream
- Related
- Published
- 2025-09-15T14:21:38Z
- Modified
- 2025-10-16T15:26:06.300061Z
- Summary
- md/raid5-cache: fix null-ptr-deref for r5l_flush_stripe_to_raid()
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
md/raid5-cache: fix null-ptr-deref for r5lflushstripetoraid()
r5lflushstripetoraid() will check if the list 'flushingios' is empty, and then submit 'flushbio', however, r5llogflush_endio() is clearing the list first and then clear the bio, which will cause null-ptr-deref:
T1: submit flush io raid5d handleactivestripes r5lflushstripetoraid // list is empty // add 'ioendios' to the list bioinit submitbio // io1
T2: io1 is done r5llogflushendio listsplicetailinit // clear the list T3: submit new flush io ... r5lflushstripetoraid // list is empty // add 'ioendios' to the list bioinit biouninit // clear bio->biblkg submitbio // null-ptr-deref
Fix this problem by clearing bio before clearing the list in r5llogflush_endio().
- References
-
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/0d0bd28c500173bfca78aa840f8f36d261ef1765
- https://git.kernel.org/stable/c/711fb92606208a8626b785da4f9f23d648a5b6c8
- https://git.kernel.org/stable/c/7a8b6d93991bf4b72b3f959baea35397c6c8e521
- https://git.kernel.org/stable/c/e46b2e7be8059d156af8c011dd8d665229b65886
Affected packages
Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Affected ranges
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0dd00cba99c352dc9afd62979f350d808c215cb9Fixed711fb92606208a8626b785da4f9f23d648a5b6c8
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0dd00cba99c352dc9afd62979f350d808c215cb9Fixed7a8b6d93991bf4b72b3f959baea35397c6c8e521
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0dd00cba99c352dc9afd62979f350d808c215cb9Fixede46b2e7be8059d156af8c011dd8d665229b65886
- Type
- GIT
- Repo
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- Events
-
Introduced0dd00cba99c352dc9afd62979f350d808c215cb9Fixed0d0bd28c500173bfca78aa840f8f36d261ef1765