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THREATINT
PUBLISHED

CVE-2024-27019

netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get()

Reserved:2024-02-19
Published:2024-05-01
Updated:2024-05-13

Description

In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_tables: Fix potential data-race in __nft_obj_type_get() nft_unregister_obj() can concurrent with __nft_obj_type_get(), and there is not any protection when iterate over nf_tables_objects list in __nft_obj_type_get(). Therefore, there is potential data-race of nf_tables_objects list entry. Use list_for_each_entry_rcu() to iterate over nf_tables_objects list in __nft_obj_type_get(), and use rcu_read_lock() in the caller nft_obj_type_get() to protect the entire type query process.

Product status

Default status
unaffected

e50092404c1b before 379bf7257bc5
affected

e50092404c1b before df7c0fb8c2b9
affected

e50092404c1b before ad333578f736
affected

e50092404c1b before 4ca946b19caf
affected

e50092404c1b before d78d867dcea6
affected

Default status
affected

4.10
affected

Any version before 4.10
unaffected

5.15.157
unaffected

6.1.88
unaffected

6.6.29
unaffected

6.8.8
unaffected

6.9
unaffected

References

https://git.kernel.org/stable/c/379bf7257bc5f2a1b1ca8514e08a871b7bf6d920

https://git.kernel.org/stable/c/df7c0fb8c2b9f9cac65659332581b19682a71349

https://git.kernel.org/stable/c/ad333578f736d56920e090d7db1f8dec891d815e

https://git.kernel.org/stable/c/4ca946b19caf655a08d5e2266d4d5526025ebb73

https://git.kernel.org/stable/c/d78d867dcea69c328db30df665be5be7d0148484

cve.org CVE-2024-27019

nvd.nist.gov CVE-2024-27019

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