CVE-2022-49171

In the Linux kernel, the following vulnerability has been resolved: ext4: don't BUG if someone dirty pages without asking ext4 first unpinuserpagesremote is dirtying pages without properly warning the file system in advance. A related race was noted by Jan Kara in 20181; however, more recently...

CVE-2022-49174

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ext4mbmarkbb with flexbg with fastcommit In case of flexbg feature which is by default enabled, extents for any given inode might span across blocks from two different block group. ext4mbmarkbb only reads the bufferhead...

UBUNTU-CVE-2022-49171

In the Linux kernel, the following vulnerability has been resolved: ext4: don't BUG if someone dirty pages without asking ext4 first unpinuserpagesremote is dirtying pages without properly warning the file system in advance. A related race was noted by Jan Kara in 20181; however, more recently...

UBUNTU-CVE-2022-49174

In the Linux kernel, the following vulnerability has been resolved: ext4: fix ext4mbmarkbb with flexbg with fastcommit In case of flexbg feature which is by default enabled, extents for any given inode might span across blocks from two different block group. ext4mbmarkbb only reads the bufferhead...

CVE-2022-49708

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon ext4mbuseinodepa Hulk Robot reported a BUGON: ================================================================== kernel BUG at fs/ext4/mballoc.c:3211! ... RIP: 0010:ext4mbmarkdiskspaceused.cold+0x85/0x136f ... Cal...

CVE-2022-49708 ext4: fix bug_on ext4_mb_use_inode_pa

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon ext4mbuseinodepa Hulk Robot reported a BUGON: ================================================================== kernel BUG at fs/ext4/mballoc.c:3211! ... RIP: 0010:ext4mbmarkdiskspaceused.cold+0x85/0x136f ... Cal...

CVE-2022-49708 ext4: fix bug_on ext4_mb_use_inode_pa

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon ext4mbuseinodepa Hulk Robot reported a BUGON: ================================================================== kernel BUG at fs/ext4/mballoc.c:3211! ... RIP: 0010:ext4mbmarkdiskspaceused.cold+0x85/0x136f ... Cal...

CVE-2022-49708

CVE-2022-49708 affects the Linux kernel ext4 file system (mballoc allocator). The issue is triggered by a BUG_ON path in ext4_mb_use_inode_pa during disk space accounting, leading to a kernel crash when fsync/writeback paths exercise preallocation and inode pa blocks. Reproduction steps involve c...

CVE-2022-49707 ext4: add reserved GDT blocks check

In the Linux kernel, the following vulnerability has been resolved: ext4: add reserved GDT blocks check We capture a NULL pointer issue when resizing a corrupt ext4 image which is freshly clear resizeinode feature not run e2fsck. It could be simply reproduced by following steps. The problem is...

CVE-2022-49707

In the Linux kernel, the following vulnerability has been resolved: ext4: add reserved GDT blocks check We capture a NULL pointer issue when resizing a corrupt ext4 image which is freshly clear resizeinode feature not run e2fsck. It could be simply reproduced by following steps. The problem is...

CVE-2022-49707

CVE-2022-49707 concerns a Linux kernel ext4 resize bug where a NULL pointer dereference could occur when resizing a corrupted ext4 image with resize_inode previously cleared. The root cause is that during ext4_resize_fs() transitioning to meta_bg mode, es->s_reserved_gdt_blocks was not reduced...

CVE-2022-49707 ext4: add reserved GDT blocks check

In the Linux kernel, the following vulnerability has been resolved: ext4: add reserved GDT blocks check We capture a NULL pointer issue when resizing a corrupt ext4 image which is freshly clear resizeinode feature not run e2fsck. It could be simply reproduced by following steps. The problem is...

CVE-2022-49707 ext4: add reserved GDT blocks check

In the Linux kernel, the following vulnerability has been resolved: ext4: add reserved GDT blocks check We capture a NULL pointer issue when resizing a corrupt ext4 image which is freshly clear resizeinode feature not run e2fsck. It could be simply reproduced by following steps. The problem is...

CVE-2022-49414 ext4: fix race condition between ext4_write and ext4_convert_inline_data

In the Linux kernel, the following vulnerability has been resolved: ext4: fix race condition between ext4write and ext4convertinlinedata Hulk Robot reported a BUGON: ================================================================== EXT4-fs error device loop3: ext4mbgeneratebuddy:805: group 0,...

CVE-2022-49414

In the Linux kernel, the following vulnerability has been resolved: ext4: fix race condition between ext4write and ext4convertinlinedata Hulk Robot reported a BUGON: ================================================================== EXT4-fs error device loop3: ext4mbgeneratebuddy:805: group 0,...

CVE-2022-49414 ext4: fix race condition between ext4_write and ext4_convert_inline_data

In the Linux kernel, the following vulnerability has been resolved: ext4: fix race condition between ext4write and ext4convertinlinedata Hulk Robot reported a BUGON: ================================================================== EXT4-fs error device loop3: ext4mbgeneratebuddy:805: group 0,...

CVE-2022-49414 ext4: fix race condition between ext4_write and ext4_convert_inline_data

In the Linux kernel, the following vulnerability has been resolved: ext4: fix race condition between ext4write and ext4convertinlinedata Hulk Robot reported a BUGON: ================================================================== EXT4-fs error device loop3: ext4mbgeneratebuddy:805: group 0,...

CVE-2022-49414

CVE-2022-49414 affects the Linux kernel/ext4: a race between ext4_write and ext4_convert_inline_data can trigger a BUG_ON in ext4_jbd2, potentially leading to filesystem corruption (example trace in Unity/OpenVAS advisories). The public documents identify the issue and describe the underlying cau...

CVE-2022-49408 ext4: fix memory leak in parse_apply_sb_mount_options()

In the Linux kernel, the following vulnerability has been resolved: ext4: fix memory leak in parseapplysbmountoptions If processing the on-disk mount options fails after any memory was allocated in the ext4fscontext, e.g. sqfnames, then this memory is leaked. Fix this by calling ext4fcfree instea...

CVE-2022-49409 ext4: fix bug_on in __es_tree_search

In the Linux kernel, the following vulnerability has been resolved: ext4: fix bugon in estreesearch Hulk Robot reported a BUGON: ================================================================== kernel BUG at fs/ext4/extentsstatus.c:199! ... RIP: 0010:ext4esend fs/ext4/extentsstatus.c:199 inline...