Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 622daaff0a8975fb5c5b95f24f3234550ba32e92 before 7649937987fed51ed09985da4019d50189fc534e; affected 622daaff0a8975fb5c5b95f24f3234550ba32e92 before 58b1c6881081f5ddfb9a14dc241a74732c0f855c; affected 622daaff0a8975fb5c5b95f24f3234550ba32e92 before 8f41df5fd4c11d26e929a85f7239799641f92da7; affected 622daaff0a8975fb5c5b95f24f3234550ba32e92 before f3d80f34f58445355fa27b9579a449fb186aa64e; affected 622daaff0a8975fb5c5b95f24f3234550ba32e92 before f2bd0f1ab47822fe5bd699c8458b896c4b2edea1; affected 622daaff0a8975fb5c5b95f24f3234550ba32e92 before b9495a9109abc31d3170f7aad7d48aa64610a1a2; affected 622daaff0a8975fb5c5b95f24f3234550ba32e92 before 250423300b4b0335918be187ef3cade248c06e6a; affected 622daaff0a8975fb5c5b95f24f3234550ba32e92 before 6438ef381c183444f7f9d1de18f22661cba1e946 |
| Linux / Linux | affected 2.6.38; unaffected 0 before 2.6.38; unaffected 5.4.291 through 5.4.*; unaffected 5.10.235 through 5.10.*; unaffected 5.15.179 through 5.15.*; unaffected 6.1.129 through 6.1.*; unaffected 6.6.78 through 6.6.*; unaffected 6.12.14 through 6.12.*; unaffected 6.13.3 through 6.13.*; unaffected 6.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/7649937987fed51ed09985da4019d50189fc534e
- https://git.kernel.org/stable/c/58b1c6881081f5ddfb9a14dc241a74732c0f855c
- https://git.kernel.org/stable/c/8f41df5fd4c11d26e929a85f7239799641f92da7
- https://git.kernel.org/stable/c/f3d80f34f58445355fa27b9579a449fb186aa64e
- https://git.kernel.org/stable/c/f2bd0f1ab47822fe5bd699c8458b896c4b2edea1
- https://git.kernel.org/stable/c/b9495a9109abc31d3170f7aad7d48aa64610a1a2
- https://git.kernel.org/stable/c/250423300b4b0335918be187ef3cade248c06e6a
- https://git.kernel.org/stable/c/6438ef381c183444f7f9d1de18f22661cba1e946
ADP enrichment
No English description supplied.