CVE-2025-21736

CVE-2025-21736 : In the Linux kernel, nilfs2 may overflow when computing the result of nilfs_fiemap() via nilfs_bmap_lookup_contig() if blocks up to maxblocks == INT_MAX are considered; an overflow can occur due to a left shift on blkbits. The advisory notes the fix is to cast the right-hand expr...

CVE-2025-21736

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix possible int overflows in nilfsfiemap Since nilfsbmaplookupcontig in nilfsfiemap calculates its result by being prepared to go through potentially maxblocks == INTMAX blocks, the value in n may experience an overflow...

CVE-2025-21736 nilfs2: fix possible int overflows in nilfs_fiemap()

In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix possible int overflows in nilfsfiemap Since nilfsbmaplookupcontig in nilfsfiemap calculates its result by being prepared to go through potentially maxblocks == INTMAX blocks, the value in n may experience an overflow...

CVE-2025-21722 nilfs2: do not force clear folio if buffer is referenced

In the Linux kernel, the following vulnerability has been resolved: nilfs2: do not force clear folio if buffer is referenced Patch series "nilfs2: protect busy buffer heads from being force-cleared". This series fixes the buffer head state inconsistency issues reported by syzbot that occurs when...

CVE-2025-21722 nilfs2: do not force clear folio if buffer is referenced

In the Linux kernel, the following vulnerability has been resolved: nilfs2: do not force clear folio if buffer is referenced Patch series "nilfs2: protect busy buffer heads from being force-cleared". This series fixes the buffer head state inconsistency issues reported by syzbot that occurs when...

CVE-2025-21722

In the Linux kernel, the following vulnerability has been resolved: nilfs2: do not force clear folio if buffer is referenced Patch series "nilfs2: protect busy buffer heads from being force-cleared". This series fixes the buffer head state inconsistency issues reported by syzbot that occurs when...

CVE-2025-21722

CVE-2025-21722 concerns the NILFS2 filesystem in the Linux kernel. When filesystem corruption triggers a read-only fallback, buffer state inconsistencies can occur: one path is when mark_buffer_dirty() marks data/metadata dirty but the buffer isn’t uptodate, and another path is nilfs_btree_propag...

CVE-2025-21722 nilfs2: do not force clear folio if buffer is referenced

In the Linux kernel, the following vulnerability has been resolved: nilfs2: do not force clear folio if buffer is referenced Patch series "nilfs2: protect busy buffer heads from being force-cleared". This series fixes the buffer head state inconsistency issues reported by syzbot that occurs when...

CVE-2025-21721 nilfs2: handle errors that nilfs_prepare_chunk() may return

In the Linux kernel, the following vulnerability has been resolved: nilfs2: handle errors that nilfspreparechunk may return Patch series "nilfs2: fix issues with rename operations". This series fixes BUGON check failures reported by syzbot around rename operations, and a minor behavioral issue...

CVE-2025-21721

CVE-2025-21721 is a Linux kernel vulnerability in the NILFS2 filesystem. The patch series fixes nilfs_prepare_chunk() error handling paths that were previously omitted when rewriting directory entries in nilfs_set_link(), nilfs_delete_entry(), and in the caller nilfs_rename(). The issue allowed e...

CVE-2025-21721

In the Linux kernel, the following vulnerability has been resolved: nilfs2: handle errors that nilfspreparechunk may return Patch series "nilfs2: fix issues with rename operations". This series fixes BUGON check failures reported by syzbot around rename operations, and a minor behavioral issue...

CVE-2025-21721 nilfs2: handle errors that nilfs_prepare_chunk() may return

In the Linux kernel, the following vulnerability has been resolved: nilfs2: handle errors that nilfspreparechunk may return Patch series "nilfs2: fix issues with rename operations". This series fixes BUGON check failures reported by syzbot around rename operations, and a minor behavioral issue...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in Linux kernel that stems from nilfs2 not handling errors that may be returned by nilfspreparechunk...

USN-7295-1 linux-xilinx-zynqmp vulnerabilities

Ye Zhang and Nicolas Wu discovered that the iouring subsystem in the Linux kernel did not properly handle locking for rings with IOPOLL, leading to a double-free vulnerability. A local attacker could use this to cause a denial of service system crash or possibly execute arbitrary code...

USN-7291-1 linux-gcp, linux-gcp-5.15, linux-gke vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - x86 architecture; - Block layer subsystem; - ACPI drivers; - GPU drivers; - HID subsystem; -...

USN-7303-1 linux-nvidia, linux-nvidia-6.8, linux-nvidia-lowlatency vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM32 architecture; - x86 architecture; - Block layer subsystem; - Cryptographic API; - ACPI drivers; - Drivers cor...

USN-7289-2 linux-azure-5.15, linux-azure-fde-5.15, linux-oracle-5.15 vulnerabilities

Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update corrects flaws in the following subsystems: - ARM64 architecture; - x86 architecture; - Block layer subsystem; - ACPI drivers; - GPU drivers; - HID subsystem; -...

Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-7291-1)

"The remote Ubuntu 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7291-1 advisory. Several security issues were discovered in the Linux kernel. An attacker could possibly use these to compromise the system. This update...

Important: kernel

Issue Overview: In the Linux kernel, the following vulnerability has been resolved: ipv6: fix possible UAF in ip6finishoutput2 CVE-2024-44986 In the Linux kernel, the following vulnerability has been resolved: ipv6: avoid possible NULL deref in rt6uncachedlistflushdev CVE-2024-47707 In the Linux...

The vulnerability of the nilfs2 component in the Linux operating system’s kernel, which allows a hacker to cause a service failure

The vulnerability of the nilfs2 component in the Linux operating system’s kernel is related to errors that occur after deallocation. Exploiting this vulnerability can allow an attacker to cause a service failure...