CVE-2021-47351
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
ubifs: Fix races between xattr_{set|get} and listxattr operations
UBIFS may occur some problems with concurrent xattr_{set|get} and listxattr operations, such as assertion failure, memory corruption, stale xattr value[1].
Fix it by importing a new rw-lock in @ubifs_inode to serilize write operations on xattr, concurrent read operations are still effective, just like ext4.
[1] https://lore.kernel.org/linux-mtd/20200630130438.141649-1-houtao1@huawei.com
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d < 7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08 | affected |
| Linux | Linux | 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d < 38dde03eb239605f428f3f1e4baa73d4933a4cc6 | affected |
| Linux | Linux | 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d < 9558612cb829f2c022b788f55d6b8437d5234a82 | affected |
| Linux | Linux | 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d < c0756f75c22149d20fcb7d8409827cee905eb386 | affected |
| Linux | Linux | 1e51764a3c2ac05a23a22b2a95ddee4d9bffb16d < f4e3634a3b642225a530c292fdb1e8a4007507f5 | affected |
| Linux | Linux | 2.6.27 | affected |
| Linux | Linux | 0 < 2.6.27 | unaffected |
| Linux | Linux | 5.4.133 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.51 <= 5.10.* | unaffected |
| Linux | Linux | 5.12.18 <= 5.12.* | unaffected |
| Linux | Linux | 5.13.3 <= 5.13.* | unaffected |
| Linux | Linux | 5.14 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
CVE Program Container
Additional References
- https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08
- https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6
- https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82
- https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386
- https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5
References
- https://git.kernel.org/stable/c/7adc05b73d91a5e3d4ca7714fa53ad9b70c53d08
- https://git.kernel.org/stable/c/38dde03eb239605f428f3f1e4baa73d4933a4cc6
- https://git.kernel.org/stable/c/9558612cb829f2c022b788f55d6b8437d5234a82
- https://git.kernel.org/stable/c/c0756f75c22149d20fcb7d8409827cee905eb386
- https://git.kernel.org/stable/c/f4e3634a3b642225a530c292fdb1e8a4007507f5
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