CVE-2023-53032
netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function.
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: netfilter: ipset: Fix overflow before widen in the bitmap_ip_create() function. When first_ip is 0, last_ip is 0xFFFFFFFF, and netmask is 31, the value of an arithmetic expression 2 << (netmask - mask_bits - 1) is subject to overflow due to a failure casting operands to a larger data type before performing the arithmetic. Note that it's harmless since the value will be checked at the next step. Found by InfoTeCS on behalf of Linux Verification Center (linuxtesting.org) with SVACE.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Mar 27, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
b9fed748185a96b7cfe74afac4bd228e8af16f01 < e137d9bb26bd85ce07323a38e38ceb0b160db841 b9fed748185a96b7cfe74afac4bd228e8af16f01 < dfd834ccc1b88bbbab81b9046a3a539dd0c2d14f b9fed748185a96b7cfe74afac4bd228e8af16f01 < feefb33eefa166fc3e0fd17547b0bc0cb3baced9 b9fed748185a96b7cfe74afac4bd228e8af16f01 < 4e6a70fd840400e3a2e784a6673968a3eb2431c0 b9fed748185a96b7cfe74afac4bd228e8af16f01 < 511cf17b2447fc41cfef8d71936e1fa53e395c1e b9fed748185a96b7cfe74afac4bd228e8af16f01 < e88865876d47c790be0d5e23973499d75d034364 b9fed748185a96b7cfe74afac4bd228e8af16f01 < 9ea4b476cea1b7d461d16dda25ca3c7e616e2d15
Linux / Linux
3.7
References
git.kernel.org: https://git.kernel.org/stable/c/e137d9bb26bd85ce07323a38e38ceb0b160db841 git.kernel.org: https://git.kernel.org/stable/c/dfd834ccc1b88bbbab81b9046a3a539dd0c2d14f git.kernel.org: https://git.kernel.org/stable/c/feefb33eefa166fc3e0fd17547b0bc0cb3baced9 git.kernel.org: https://git.kernel.org/stable/c/4e6a70fd840400e3a2e784a6673968a3eb2431c0 git.kernel.org: https://git.kernel.org/stable/c/511cf17b2447fc41cfef8d71936e1fa53e395c1e git.kernel.org: https://git.kernel.org/stable/c/e88865876d47c790be0d5e23973499d75d034364 git.kernel.org: https://git.kernel.org/stable/c/9ea4b476cea1b7d461d16dda25ca3c7e616e2d15