CVE-2022-50749
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
acct: fix potential integer overflow in encode_comp_t()
The integer overflow is descripted with following codes: > 317 static comp_t encode_comp_t(u64 value) > 318 { > 319 int exp, rnd; …… > 341 exp <<= MANTSIZE; > 342 exp += value; > 343 return exp; > 344 }
Currently comp_t is defined as type of '__u16', but the variable 'exp' is type of 'int', so overflow would happen when variable 'exp' in line 343 is greater than 65535.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < e93f995a591c352d35d89c518c54f790e1537754 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < cf60bbca1b83a7e0927e36dbf178328982927886 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 1750a0983c455a9b3badd848471fc8d58cb61f67 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a815a3e019456c94b03bd183e7ac22fd29e9e6fd | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 6edd0cdee5780fd5f43356b72b29a2a6d48ef6da | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ebe16676e1dcaa4556ec4d36ca40c82e99e88cfa | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 2224897d8187dc22a83e05d9361efcccf67bcf12 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0aac6e60c464a5f942f995428e67f8ae1c422250 | affected |
| Linux | Linux | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < c5f31c655bcc01b6da53b836ac951c1556245305 | affected |
| Linux | Linux | 2.6.12 | affected |
| Linux | Linux | 0 < 2.6.12 | unaffected |
| Linux | Linux | 4.9.337 <= 4.9.* | unaffected |
| Linux | Linux | 4.14.303 <= 4.14.* | unaffected |
| Linux | Linux | 4.19.270 <= 4.19.* | unaffected |
| Linux | Linux | 5.4.229 <= 5.4.* | unaffected |
| Linux | Linux | 5.10.163 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.86 <= 5.15.* | unaffected |
| Linux | Linux | 6.0.16 <= 6.0.* | unaffected |
| Linux | Linux | 6.1.2 <= 6.1.* | unaffected |
| Linux | Linux | 6.2 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/e93f995a591c352d35d89c518c54f790e1537754
- https://git.kernel.org/stable/c/cf60bbca1b83a7e0927e36dbf178328982927886
- https://git.kernel.org/stable/c/1750a0983c455a9b3badd848471fc8d58cb61f67
- https://git.kernel.org/stable/c/a815a3e019456c94b03bd183e7ac22fd29e9e6fd
- https://git.kernel.org/stable/c/6edd0cdee5780fd5f43356b72b29a2a6d48ef6da
- https://git.kernel.org/stable/c/ebe16676e1dcaa4556ec4d36ca40c82e99e88cfa
- https://git.kernel.org/stable/c/2224897d8187dc22a83e05d9361efcccf67bcf12
- https://git.kernel.org/stable/c/0aac6e60c464a5f942f995428e67f8ae1c422250
- https://git.kernel.org/stable/c/c5f31c655bcc01b6da53b836ac951c1556245305
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