CVE-2025-21736
nilfs2: fix possible int overflows in nilfs_fiemap()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix possible int overflows in nilfs_fiemap() Since nilfs_bmap_lookup_contig() in nilfs_fiemap() calculates its result by being prepared to go through potentially maxblocks == INT_MAX blocks, the value in n may experience an overflow caused by left shift of blkbits. While it is extremely unlikely to occur, play it safe and cast right hand expression to wider type to mitigate the issue. Found by Linux Verification Center (linuxtesting.org) with static analysis tool SVACE.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Feb 27, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
622daaff0a8975fb5c5b95f24f3234550ba32e92 < 7649937987fed51ed09985da4019d50189fc534e 622daaff0a8975fb5c5b95f24f3234550ba32e92 < 58b1c6881081f5ddfb9a14dc241a74732c0f855c 622daaff0a8975fb5c5b95f24f3234550ba32e92 < 8f41df5fd4c11d26e929a85f7239799641f92da7 622daaff0a8975fb5c5b95f24f3234550ba32e92 < f3d80f34f58445355fa27b9579a449fb186aa64e 622daaff0a8975fb5c5b95f24f3234550ba32e92 < f2bd0f1ab47822fe5bd699c8458b896c4b2edea1 622daaff0a8975fb5c5b95f24f3234550ba32e92 < b9495a9109abc31d3170f7aad7d48aa64610a1a2 622daaff0a8975fb5c5b95f24f3234550ba32e92 < 250423300b4b0335918be187ef3cade248c06e6a 622daaff0a8975fb5c5b95f24f3234550ba32e92 < 6438ef381c183444f7f9d1de18f22661cba1e946
Linux / Linux
2.6.38
References
git.kernel.org: https://git.kernel.org/stable/c/7649937987fed51ed09985da4019d50189fc534e git.kernel.org: https://git.kernel.org/stable/c/58b1c6881081f5ddfb9a14dc241a74732c0f855c git.kernel.org: https://git.kernel.org/stable/c/8f41df5fd4c11d26e929a85f7239799641f92da7 git.kernel.org: https://git.kernel.org/stable/c/f3d80f34f58445355fa27b9579a449fb186aa64e git.kernel.org: https://git.kernel.org/stable/c/f2bd0f1ab47822fe5bd699c8458b896c4b2edea1 git.kernel.org: https://git.kernel.org/stable/c/b9495a9109abc31d3170f7aad7d48aa64610a1a2 git.kernel.org: https://git.kernel.org/stable/c/250423300b4b0335918be187ef3cade248c06e6a git.kernel.org: https://git.kernel.org/stable/c/6438ef381c183444f7f9d1de18f22661cba1e946 lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html lists.debian.org: https://lists.debian.org/debian-lts-announce/2025/03/msg00028.html