{"id":"CVE-2022-50082","title":"ext4: fix warning in ext4_iomap_begin as race between bmap and write","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix warning in ext4_iomap_begin as race between bmap and write\n\nWe got issue as follows:\n------------[ cut here ]------------\nWARNING: CPU: 3 PID: 9310 at fs/ext4…","severity":"none","vendor":"Linux","product":"Linux","affected":["Linux >= ac58e4fb03f9d111d733a4ad379d06eef3a24705 < e1682c7171a6c0ff576fe8116b8cba5b8f538b94","Linux >= ac58e4fb03f9d111d733a4ad379d06eef3a24705 < 30dfb75e1f8645404a536c74d468d498adcd4e74","Linux >= ac58e4fb03f9d111d733a4ad379d06eef3a24705 < a9fe6d1e3d343d7309f501b1f48020ce7127221f","Linux >= ac58e4fb03f9d111d733a4ad379d06eef3a24705 < fa6482f374fda29a71ad44d76d35b4842d43cda4","Linux >= ac58e4fb03f9d111d733a4ad379d06eef3a24705 < 51ae846cff568c8c29921b1b28eb2dfbcd4ac12d","Linux 5.7"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-11-05T19:54:09.423802Z"},"published":"2025-06-18","updated":"2026-11-05","sourceUpdated":"2026-11-05T20:00:16.295Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2022-50082","references":[{"url":"https://git.kernel.org/stable/c/e1682c7171a6c0ff576fe8116b8cba5b8f538b94"},{"url":"https://git.kernel.org/stable/c/30dfb75e1f8645404a536c74d468d498adcd4e74"},{"url":"https://git.kernel.org/stable/c/a9fe6d1e3d343d7309f501b1f48020ce7127221f"},{"url":"https://git.kernel.org/stable/c/fa6482f374fda29a71ad44d76d35b4842d43cda4"},{"url":"https://git.kernel.org/stable/c/51ae846cff568c8c29921b1b28eb2dfbcd4ac12d"}],"tags":["cve.org"],"epss":0.00194,"epssPercentile":0.09127,"ingestedAt":"2026-11-05T22:38:31.649Z","slug":"CVE-2022-50082","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\next4: fix warning in ext4_iomap_begin as race between bmap and write\n\nWe got issue as follows:\n------------[ cut here ]------------\nWARNING: CPU: 3 PID: 9310 at fs/ext4/inode.c:3441 ext4_iomap_begin+0x182/0x5d0\nRIP: 0010:ext4_iomap_begin+0x182/0x5d0\nRSP: 0018:ffff88812460fa08 EFLAGS: 00010293\nRAX: ffff88811f168000 RBX: 0000000000000000 RCX: ffffffff97793c12\nRDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000003\nRBP: ffff88812c669160 R08: ffff88811f168000 R09: ffffed10258cd20f\nR10: ffff88812c669077 R11: ffffed10258cd20e R12: 0000000000000001\nR13: 00000000000000a4 R14: 000000000000000c R15: ffff88812c6691ee\nFS:  00007fd0d6ff3740(0000) GS:ffff8883af180000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007fd0d6dda290 CR3: 0000000104a62000 CR4: 00000000000006e0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n iomap_apply+0x119/0x570\n iomap_bmap+0x124/0x150\n ext4_bmap+0x14f/0x250\n bmap+0x55/0x80\n do_vfs_ioctl+0x952/0xbd0\n __x64_sys_ioctl+0xc6/0x170\n do_syscall_64+0x33/0x40\n entry_SYSCALL_64_after_hwframe+0x44/0xa9\n\nAbove issue may happen as follows:\n          bmap                    write\nbmap\n  ext4_bmap\n    iomap_bmap\n      ext4_iomap_begin\n                            ext4_file_write_iter\n\t\t\t      ext4_buffered_write_iter\n\t\t\t        generic_perform_write\n\t\t\t\t  ext4_da_write_begin\n\t\t\t\t    ext4_da_write_inline_data_begin\n\t\t\t\t      ext4_prepare_inline_data\n\t\t\t\t        ext4_create_inline_data\n\t\t\t\t\t  ext4_set_inode_flag(inode,\n\t\t\t\t\t\tEXT4_INODE_INLINE_DATA);\n      if (WARN_ON_ONCE(ext4_has_inline_data(inode))) ->trigger bug_on\n\nTo solved above issue hold inode lock in ext4_bamp.\n\n## Affected\n\n- `Linux >= ac58e4fb03f9d111d733a4ad379d06eef3a24705 < e1682c7171a6c0ff576fe8116b8cba5b8f538b94`\n- `Linux >= ac58e4fb03f9d111d733a4ad379d06eef3a24705 < 30dfb75e1f8645404a536c74d468d498adcd4e74`\n- `Linux >= ac58e4fb03f9d111d733a4ad379d06eef3a24705 < a9fe6d1e3d343d7309f501b1f48020ce7127221f`\n- `Linux >= ac58e4fb03f9d111d733a4ad379d06eef3a24705 < fa6482f374fda29a71ad44d76d35b4842d43cda4`\n- `Linux >= ac58e4fb03f9d111d733a4ad379d06eef3a24705 < 51ae846cff568c8c29921b1b28eb2dfbcd4ac12d`\n- `Linux 5.7`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}