CVE-2025-40150

The CVE-2025-40150 entries describe a Linux kernel F2FS issue where a race between fallocate on a pinning file and block allocation can migrate a just-allocated segment, causing mismatch between in-memory SIT and on-disk SSA (example segno 173822). The root cause is a race in garbage collection t...

CVE-2025-40150 f2fs: fix to avoid migrating empty section

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid migrating empty section It reports a bug from device w/ zufs: F2FS-fs dm-64: Inconsistent segment 173822 type 1, 0 in SSA and SIT F2FS-fs dm-64: Stopped filesystem due to reason: 4 Thread A Thread B -...

CVE-2025-40150 f2fs: fix to avoid migrating empty section

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid migrating empty section It reports a bug from device w/ zufs: F2FS-fs dm-64: Inconsistent segment 173822 type 1, 0 in SSA and SIT F2FS-fs dm-64: Stopped filesystem due to reason: 4 Thread A Thread B -...

CVE-2025-40150

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid migrating empty section It reports a bug from device w/ zufs: F2FS-fs dm-64: Inconsistent segment 173822 type 1, 0 in SSA and SIT F2FS-fs dm-64: Stopped filesystem due to reason: 4 Thread A Thread B -...

CVE-2025-40137 f2fs: fix to truncate first page in error path of f2fs_truncate()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to truncate first page in error path of f2fstruncate syzbot reports a bug as below: loop0: detected capacity change from 0 to 40427 F2FS-fs loop0: Wrong SSA boundary, start3584 end4096 blocks3072 F2FS-fs loop0: Can't fi...

CVE-2025-40137

CVE-2025-40137 describes a Linux kernel issue in F2FS where the error path of f2fs_truncate() did not truncate the first page in cache, leading to inode eviction logic detecting a non-zero i_data.nrpages and triggering a kernel BUG during eviction. The provided details trace the path from evict →...

CVE-2025-40138 f2fs: fix to avoid NULL pointer dereference in f2fs_check_quota_consistency()

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid NULL pointer dereference in f2fscheckquotaconsistency syzbot reported a f2fs bug as below: Oops: gen 107.736417 T5848 Oops: general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 ...

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 a contention condition in f2fs when migrating empty segments, which could lead to inconsistent segment types...

PT-2025-46625

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description The Linux kernel contains a flaw within the f2fs filesystem related to segment migration. A race condition can occur during file allocation and garbage collection, specifically when a...

Linux Distros Unpatched Vulnerability : CVE-2025-40137

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - f2fs: fix to truncate first page in error path of f2fstruncate syzbot reports a bug as below: loop0: detected capacity change from 0 to 40427 F2FS-fs loop0: Wro...

Linux Distros Unpatched Vulnerability : CVE-2025-40150

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - f2fs: fix to avoid migrating empty section It reports a bug from device w/ zufs: F2FS-fs dm-64: Inconsistent segment 173822 type 1, 0 in SSA and SIT F2FS-fs...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-990877)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990877 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: Require FMODEWRITE for atomic write ioctls The F2FS ioctls for starting and committing atom...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-990550)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-990550 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix dereference of stale list iterator after loop body The list iterator variable will be a...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989015)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989015 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on iextraisize in isalive syzbot found a f2fs bug: BUG: KASAN:...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989568)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989568 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: let's avoid panic if extenttree is not created This patch avoids the below panic. pc :...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989599)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989599 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix f2fsbugon when uninstalling filesystem call f2fsevictinode. creating a large files duri...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989647)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989647 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on totaldatablocks As Yanming reported in bugzilla:...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989693)

"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989693 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: avoid format-overflow warning With gcc and W=1 option, there's a warning like this:...

Unity Linux 20.1070e Security Update: kernel (UTSA-2025-989831)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989831 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on ixattrnid in sanitycheckinode syzbot reports a kernel bug as belo...

Unity Linux 20.1070a Security Update: kernel (UTSA-2025-988846)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-988846 advisory. In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid racing on fsyncentryslab by multi filesystem instances As syzbot reported, the...