{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2022-50406", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50406", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-09-18T16:03:51.155Z", "updatedAt": "2026-10-03T10:54:48.083Z", "importedAt": "2026-10-24T01:56:49.724Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "iomap: iomap: fix memory corruption when recording errors during writeback", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\niomap: iomap: fix memory corruption when recording errors during writeback\n\nEvery now and then I see this crash on arm64:\n\nUnable to handle kernel NULL pointer dereference at virtual address 00000000000000f8\nBuffer I/O error on dev dm-0, logical block 8733687, async page read\nMem abort info:\n ESR = 0x0000000096000006\n EC = 0x25: DABT (current EL), IL = 32 bits\n SET = 0, FnV = 0\n EA = 0, S1PTW = 0\n FSC = 0x06: level 2 translation fault\nData abort info:\n ISV = 0, ISS = 0x00000006\n CM = 0, WnR = 0\nuser pgtable: 64k pages, 42-bit VAs, pgdp=0000000139750000\n[00000000000000f8] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000, pmd=0000000000000000\nInternal error: Oops: 96000006 [#1] PREEMPT SMP\nBuffer I/O error on dev dm-0, logical block 8733688, async page read\nDumping ftrace buffer:\nBuffer I/O error on dev dm-0, logical block 8733689, async page read\n (ftrace buffer empty)\nXFS (dm-0): log I/O error -5\nModules linked in: dm_thin_pool dm_persistent_data\nXFS (dm-0): Metadata I/O Error (0x1) detected at xfs_trans_read_buf_map+0x1ec/0x590 [xfs] (fs/xfs/xfs_trans_buf.c:296).\n dm_bio_prison\nXFS (dm-0): Please unmount the filesystem and rectify the problem(s)\nXFS (dm-0): xfs_imap_lookup: xfs_ialloc_read_agi() returned error -5, agno 0\n dm_bufio dm_log_writes xfs nft_chain_nat xt_REDIRECT nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_REJECT\npotentially unexpected fatal signal 6.\n nf_reject_ipv6\npotentially unexpected fatal signal 6.\n ipt_REJECT nf_reject_ipv4\nCPU: 1 PID: 122166 Comm: fsstress Tainted: G W 6.0.0-rc5-djwa #rc5 3004c9f1de887ebae86015f2677638ce51ee7\n rpcsec_gss_krb5 auth_rpcgss xt_tcpudp ip_set_hash_ip ip_set_hash_net xt_set nft_compat ip_set_hash_mac ip_set nf_tables\nHardware name: QEMU KVM Virtual Machine, BIOS 1.5.1 06/16/2021\npstate: 60001000 (nZCv daif -PAN -UAO -TCO -DIT +SSBS BTYPE=--)\n ip_tables\npc : 000003fd6d7df200\n x_tables\nlr : 000003fd6d7df1ec\n overlay nfsv4\nCPU: 0 PID: 54031 Comm: u4:3 Tainted: G W 6.0.0-rc5-djwa #rc5 3004c9f1de887ebae86015f2677638ce51ee7405\nHardware name: QEMU KVM Virtual Machine, BIOS 1.5.1 06/16/2021\nWorkqueue: writeback wb_workfn\nsp : 000003ffd9522fd0\n (flush-253:0)\npstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--)\npc : errseq_set+0x1c/0x100\nx29: 000003ffd9522fd0 x28: 0000000000000023 x27: 000002acefeb6780\nx26: 0000000000000005 x25: 0000000000000001 x24: 0000000000000000\nx23: 00000000ffffffff x22: 0000000000000005\nlr : __filemap_set_wb_err+0x24/0xe0\n x21: 0000000000000006\nsp : fffffe000f80f760\nx29: fffffe000f80f760 x28: 0000000000000003 x27: fffffe000f80f9f8\nx26: 0000000002523000 x25: 00000000fffffffb x24: fffffe000f80f868\nx23: fffffe000f80fbb0 x22: fffffc0180c26a78 x21: 0000000002530000\nx20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000000\n\nx17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\nx14: 0000000000000001 x13: 0000000000470af3 x12: fffffc0058f70000\nx11: 0000000000000040 x10: 0000000000001b20 x9 : fffffe000836b288\nx8 : fffffc00eb9fd480 x7 : 0000000000f83659 x6 : 0000000000000000\nx5 : 0000000000000869 x4 : 0000000000000005 x3 : 00000000000000f8\nx20: 000003fd6d740020 x19: 000000000001dd36 x18: 0000000000000001\nx17: 000003fd6d78704c x16: 0000000000000001 x15: 000002acfac87668\nx2 : 0000000000000ffa x1 : 00000000fffffffb x0 : 00000000000000f8\nCall trace:\n errseq_set+0x1c/0x100\n __filemap_set_wb_err+0x24/0xe0\n iomap_do_writepage+0x5e4/0xd5c\n write_cache_pages+0x208/0x674\n iomap_writepages+0x34/0x60\n xfs_vm_writepages+0x8c/0xcc [xfs 7a861f39c43631f15d3a5884246ba5035d4ca78b]\nx14: 0000000000000000 x13: 2064656e72757465 x12: 0000000000002180\nx11: 000003fd6d8a82d0 x10: 0000000000000000 x9 : 000003fd6d8ae288\nx8 : 0000000000000083 x7 : 00000000ffffffff x6 : 00000000ffffffee\nx5 : 00000000fbad2887 x4 : 000003fd6d9abb58 x3 : 000003fd6d740020\nx2 : 0000000000000006 x1 : 000000000001dd36 x0 : 0000000000000000\nCPU: \n---truncated---", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "150d5be09ce49a9bed6feb7b7dc4e5ae188778ec", "status": "affected", "versionType": "git", "lessThan": "76a9234cb66479e9d02b15fd0f3e349cb2320279" }, { "version": "150d5be09ce49a9bed6feb7b7dc4e5ae188778ec", "status": "affected", "versionType": "git", "lessThan": "169adb79cfd59250a5b1f68cdc69e7287fc5a0ce" }, { "version": "150d5be09ce49a9bed6feb7b7dc4e5ae188778ec", "status": "affected", "versionType": "git", "lessThan": "82c66c46f73b88be74c869e2cbfef45281adf3c6" }, { "version": "150d5be09ce49a9bed6feb7b7dc4e5ae188778ec", "status": "affected", "versionType": "git", "lessThan": "7308591d9c7787aec58f6a01a7823f14e90db7a2" }, { "version": "150d5be09ce49a9bed6feb7b7dc4e5ae188778ec", "status": "affected", "versionType": "git", "lessThan": "3d5f3ba1ac28059bdf7000cae2403e4e984308d2" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.6", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.6" }, { "version": "5.10.271", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.222", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "5.19.17", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.19.*" }, { "version": "6.0.3", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.0.*" }, { "version": "6.1", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }