Описание
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.
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.
Ссылки
- https://nvd.nist.gov/vuln/detail/CVE-2025-21736
- https://git.kernel.org/stable/c/250423300b4b0335918be187ef3cade248c06e6a
- https://git.kernel.org/stable/c/58b1c6881081f5ddfb9a14dc241a74732c0f855c
- https://git.kernel.org/stable/c/6438ef381c183444f7f9d1de18f22661cba1e946
- https://git.kernel.org/stable/c/7649937987fed51ed09985da4019d50189fc534e
- https://git.kernel.org/stable/c/8f41df5fd4c11d26e929a85f7239799641f92da7
- https://git.kernel.org/stable/c/b9495a9109abc31d3170f7aad7d48aa64610a1a2
- https://git.kernel.org/stable/c/f2bd0f1ab47822fe5bd699c8458b896c4b2edea1
- https://git.kernel.org/stable/c/f3d80f34f58445355fa27b9579a449fb186aa64e
Связанные уязвимости
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.
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.
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.
In the Linux kernel, the following vulnerability has been resolved: n ...