CVE-2025-68772

Ecosystem	Package	Version

Vulnerabilities

CVE-2025-68772

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid updating compression context during writeback Bai, Shuangpeng <sjb7183@psu.edu> reported a bug as below: Oops: divide error: 0000 [#1] SMP KASAN PTI CPU: 0 UID: 0 PID: 11441 Comm: syz.0.46 Not tainted 6.17.0 #1 PREEMPT(full) Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.15.0-1 04/01/2014 RIP: 0010:f2fs_all_cluster_page_ready+0x106/0x550 fs/f2fs/compress.c:857 Call Trace: <TASK> f2fs_write_cache_pages fs/f2fs/data.c:3078 [inline] __f2fs_write_data_pages fs/f2fs/data.c:3290 [inline] f2fs_write_data_pages+0x1c19/0x3600 fs/f2fs/data.c:3317 do_writepages+0x38e/0x640 mm/page-writeback.c:2634 filemap_fdatawrite_wbc mm/filemap.c:386 [inline] __filemap_fdatawrite_range mm/filemap.c:419 [inline] file_write_and_wait_range+0x2ba/0x3e0 mm/filemap.c:794 f2fs_do_sync_file+0x6e6/0x1b00 fs/f2fs/file.c:294 generic_write_sync include/linux/fs.h:3043 [inline] f2fs_file_write_iter+0x76e/0x2700 fs/f2fs/file.c:5259 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x7e9/0xe00 fs/read_write.c:686 ksys_write+0x19d/0x2d0 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xf7/0x470 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f The bug was triggered w/ below race condition: fsync setattr ioctl - f2fs_do_sync_file - file_write_and_wait_range - f2fs_write_cache_pages : inode is non-compressed : cc.cluster_size = F2FS_I(inode)->i_cluster_size = 0 - tag_pages_for_writeback - f2fs_setattr - truncate_setsize - f2fs_truncate - f2fs_fileattr_set - f2fs_setflags_common - set_compress_context : F2FS_I(inode)->i_cluster_size = 4 : set_inode_flag(inode, FI_COMPRESSED_FILE) - f2fs_compressed_file : return true - f2fs_all_cluster_page_ready : "pgidx % cc->cluster_size" trigger dividing 0 issue Let's change as below to fix this issue: - introduce a new atomic type variable .writeback in structure f2fs_inode_info to track the number of threads which calling f2fs_write_cache_pages(). - use .i_sem lock to protect .writeback update. - check .writeback before update compression context in f2fs_setflags_common() to avoid race w/ ->writepages.

Published Jan 14, 2026

https://lore.kernel.org/linux-cve-announce/2026011358-CVE-2025-68772-9d70@gregkh/


rpm	kernel	5.14.0-160.el9
rpm	kernel	5.14.0-162.12.1.el9_1
rpm	kernel	5.14.0-162.18.1.el9_1
rpm	kernel	5.14.0-162.22.2.el9_1
rpm	kernel	5.14.0-162.23.1.el9_1
rpm	kernel	5.14.0-162.6.1.el9_1
rpm	kernel	5.14.0-283.el9
rpm	kernel	5.14.0-284.11.1.el9_2
rpm	kernel	5.14.0-284.18.1.el9_2
rpm	kernel	5.14.0-284.25.1.0.1.el9_2
rpm	kernel	5.14.0-284.25.1.el9_2
rpm	kernel	5.14.0-284.30.0.1.el9_2
rpm	kernel	5.14.0-284.30.1.el9_2
rpm	kernel	5.14.0-362.13.0.1.el9_3
rpm	kernel	5.14.0-362.13.1.el9_3
rpm	kernel	5.14.0-362.18.0.1.el9_3
rpm	kernel	5.14.0-362.18.0.2.el9_3
rpm	kernel	5.14.0-362.18.1.el9_3
rpm	kernel	5.14.0-362.24.1.0.1.el9_3
rpm	kernel	5.14.0-362.24.1.0.2.el9_3
rpm	kernel	5.14.0-362.24.1.0.3.el9_3
rpm	kernel	5.14.0-362.24.1.0.4.el9_3
rpm	kernel	5.14.0-362.24.1.el9_3
rpm	kernel	5.14.0-362.8.1.el9_3
rpm	kernel	5.14.0-427.13.1.0.1.el9_4
rpm	kernel	5.14.0-427.13.1.el9_4
rpm	kernel	5.14.0-427.16.1.0.1.el9_4
rpm	kernel	5.14.0-427.16.1.el9_4
rpm	kernel	5.14.0-427.18.1.0.1.el9_4
rpm	kernel	5.14.0-427.18.1.el9_4
rpm	kernel	5.14.0-427.20.1.0.1.el9_4
rpm	kernel	5.14.0-427.20.1.el9_4
rpm	kernel	5.14.0-427.22.1.0.1.el9_4
rpm	kernel	5.14.0-427.22.1.el9_4
rpm	kernel	5.14.0-427.24.1.0.1.el9_4
rpm	kernel	5.14.0-427.24.1.el9_4
rpm	kernel	5.14.0-427.26.1.0.1.el9_4
rpm	kernel	5.14.0-427.26.1.el9_4
rpm	kernel	5.14.0-427.28.1.0.1.el9_4
rpm	kernel	5.14.0-427.28.1.el9_4
rpm	kernel	5.14.0-427.31.1.0.1.el9_4
rpm	kernel	5.14.0-427.31.1.el9_4
rpm	kernel	5.14.0-427.33.1.0.1.el9_4
rpm	kernel	5.14.0-427.33.1.el9_4
rpm	kernel	5.14.0-427.35.1.0.1.el9_4
rpm	kernel	5.14.0-427.35.1.el9_4
rpm	kernel	5.14.0-427.37.1.0.1.el9_4
rpm	kernel	5.14.0-427.37.1.el9_4
rpm	kernel	5.14.0-427.40.1.0.1.el9_4
rpm	kernel	5.14.0-427.40.1.el9_4

Ecosystem	Package	Version

Vulnerabilities

CVE-2025-68772

Published Jan 14, 2026

https://lore.kernel.org/linux-cve-announce/2026011358-CVE-2025-68772-9d70@gregkh/


rpm	kernel	5.14.0-160.el9
rpm	kernel	5.14.0-162.12.1.el9_1
rpm	kernel	5.14.0-162.18.1.el9_1
rpm	kernel	5.14.0-162.22.2.el9_1
rpm	kernel	5.14.0-162.23.1.el9_1
rpm	kernel	5.14.0-162.6.1.el9_1
rpm	kernel	5.14.0-283.el9
rpm	kernel	5.14.0-284.11.1.el9_2
rpm	kernel	5.14.0-284.18.1.el9_2
rpm	kernel	5.14.0-284.25.1.0.1.el9_2
rpm	kernel	5.14.0-284.25.1.el9_2
rpm	kernel	5.14.0-284.30.0.1.el9_2
rpm	kernel	5.14.0-284.30.1.el9_2
rpm	kernel	5.14.0-362.13.0.1.el9_3
rpm	kernel	5.14.0-362.13.1.el9_3
rpm	kernel	5.14.0-362.18.0.1.el9_3
rpm	kernel	5.14.0-362.18.0.2.el9_3
rpm	kernel	5.14.0-362.18.1.el9_3
rpm	kernel	5.14.0-362.24.1.0.1.el9_3
rpm	kernel	5.14.0-362.24.1.0.2.el9_3
rpm	kernel	5.14.0-362.24.1.0.3.el9_3
rpm	kernel	5.14.0-362.24.1.0.4.el9_3
rpm	kernel	5.14.0-362.24.1.el9_3
rpm	kernel	5.14.0-362.8.1.el9_3
rpm	kernel	5.14.0-427.13.1.0.1.el9_4
rpm	kernel	5.14.0-427.13.1.el9_4
rpm	kernel	5.14.0-427.16.1.0.1.el9_4
rpm	kernel	5.14.0-427.16.1.el9_4
rpm	kernel	5.14.0-427.18.1.0.1.el9_4
rpm	kernel	5.14.0-427.18.1.el9_4
rpm	kernel	5.14.0-427.20.1.0.1.el9_4
rpm	kernel	5.14.0-427.20.1.el9_4
rpm	kernel	5.14.0-427.22.1.0.1.el9_4
rpm	kernel	5.14.0-427.22.1.el9_4
rpm	kernel	5.14.0-427.24.1.0.1.el9_4
rpm	kernel	5.14.0-427.24.1.el9_4
rpm	kernel	5.14.0-427.26.1.0.1.el9_4
rpm	kernel	5.14.0-427.26.1.el9_4
rpm	kernel	5.14.0-427.28.1.0.1.el9_4
rpm	kernel	5.14.0-427.28.1.el9_4
rpm	kernel	5.14.0-427.31.1.0.1.el9_4
rpm	kernel	5.14.0-427.31.1.el9_4
rpm	kernel	5.14.0-427.33.1.0.1.el9_4
rpm	kernel	5.14.0-427.33.1.el9_4
rpm	kernel	5.14.0-427.35.1.0.1.el9_4
rpm	kernel	5.14.0-427.35.1.el9_4
rpm	kernel	5.14.0-427.37.1.0.1.el9_4
rpm	kernel	5.14.0-427.37.1.el9_4
rpm	kernel	5.14.0-427.40.1.0.1.el9_4
rpm	kernel	5.14.0-427.40.1.el9_4

CVE-2025-68772 | Components Impacted | Sonatype Guide | Sonatype Guide

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CVE-2025-68772