CVE-2022-50406 (GCVE-0-2022-50406)

Vulnerability from cvelistv5 – Published: 2025-09-18 16:03 – Updated: 2026-01-14 19:13
VLAI?
Title
iomap: iomap: fix memory corruption when recording errors during writeback
Summary
In the Linux kernel, the following vulnerability has been resolved: iomap: iomap: fix memory corruption when recording errors during writeback Every now and then I see this crash on arm64: Unable to handle kernel NULL pointer dereference at virtual address 00000000000000f8 Buffer I/O error on dev dm-0, logical block 8733687, async page read Mem abort info: ESR = 0x0000000096000006 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x06: level 2 translation fault Data abort info: ISV = 0, ISS = 0x00000006 CM = 0, WnR = 0 user pgtable: 64k pages, 42-bit VAs, pgdp=0000000139750000 [00000000000000f8] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000, pmd=0000000000000000 Internal error: Oops: 96000006 [#1] PREEMPT SMP Buffer I/O error on dev dm-0, logical block 8733688, async page read Dumping ftrace buffer: Buffer I/O error on dev dm-0, logical block 8733689, async page read (ftrace buffer empty) XFS (dm-0): log I/O error -5 Modules linked in: dm_thin_pool dm_persistent_data XFS (dm-0): Metadata I/O Error (0x1) detected at xfs_trans_read_buf_map+0x1ec/0x590 [xfs] (fs/xfs/xfs_trans_buf.c:296). dm_bio_prison XFS (dm-0): Please unmount the filesystem and rectify the problem(s) XFS (dm-0): xfs_imap_lookup: xfs_ialloc_read_agi() returned error -5, agno 0 dm_bufio dm_log_writes xfs nft_chain_nat xt_REDIRECT nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip6t_REJECT potentially unexpected fatal signal 6. nf_reject_ipv6 potentially unexpected fatal signal 6. ipt_REJECT nf_reject_ipv4 CPU: 1 PID: 122166 Comm: fsstress Tainted: G W 6.0.0-rc5-djwa #rc5 3004c9f1de887ebae86015f2677638ce51ee7 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 Hardware name: QEMU KVM Virtual Machine, BIOS 1.5.1 06/16/2021 pstate: 60001000 (nZCv daif -PAN -UAO -TCO -DIT +SSBS BTYPE=--) ip_tables pc : 000003fd6d7df200 x_tables lr : 000003fd6d7df1ec overlay nfsv4 CPU: 0 PID: 54031 Comm: u4:3 Tainted: G W 6.0.0-rc5-djwa #rc5 3004c9f1de887ebae86015f2677638ce51ee7405 Hardware name: QEMU KVM Virtual Machine, BIOS 1.5.1 06/16/2021 Workqueue: writeback wb_workfn sp : 000003ffd9522fd0 (flush-253:0) pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) pc : errseq_set+0x1c/0x100 x29: 000003ffd9522fd0 x28: 0000000000000023 x27: 000002acefeb6780 x26: 0000000000000005 x25: 0000000000000001 x24: 0000000000000000 x23: 00000000ffffffff x22: 0000000000000005 lr : __filemap_set_wb_err+0x24/0xe0 x21: 0000000000000006 sp : fffffe000f80f760 x29: fffffe000f80f760 x28: 0000000000000003 x27: fffffe000f80f9f8 x26: 0000000002523000 x25: 00000000fffffffb x24: fffffe000f80f868 x23: fffffe000f80fbb0 x22: fffffc0180c26a78 x21: 0000000002530000 x20: 0000000000000000 x19: 0000000000000000 x18: 0000000000000000 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000001 x13: 0000000000470af3 x12: fffffc0058f70000 x11: 0000000000000040 x10: 0000000000001b20 x9 : fffffe000836b288 x8 : fffffc00eb9fd480 x7 : 0000000000f83659 x6 : 0000000000000000 x5 : 0000000000000869 x4 : 0000000000000005 x3 : 00000000000000f8 x20: 000003fd6d740020 x19: 000000000001dd36 x18: 0000000000000001 x17: 000003fd6d78704c x16: 0000000000000001 x15: 000002acfac87668 x2 : 0000000000000ffa x1 : 00000000fffffffb x0 : 00000000000000f8 Call trace: errseq_set+0x1c/0x100 __filemap_set_wb_err+0x24/0xe0 iomap_do_writepage+0x5e4/0xd5c write_cache_pages+0x208/0x674 iomap_writepages+0x34/0x60 xfs_vm_writepages+0x8c/0xcc [xfs 7a861f39c43631f15d3a5884246ba5035d4ca78b] x14: 0000000000000000 x13: 2064656e72757465 x12: 0000000000002180 x11: 000003fd6d8a82d0 x10: 0000000000000000 x9 : 000003fd6d8ae288 x8 : 0000000000000083 x7 : 00000000ffffffff x6 : 00000000ffffffee x5 : 00000000fbad2887 x4 : 000003fd6d9abb58 x3 : 000003fd6d740020 x2 : 0000000000000006 x1 : 000000000001dd36 x0 : 0000000000000000 CPU: ---truncated---
CWE
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 150d5be09ce49a9bed6feb7b7dc4e5ae188778ec , < 82c66c46f73b88be74c869e2cbfef45281adf3c6 (git)
Affected: 150d5be09ce49a9bed6feb7b7dc4e5ae188778ec , < 7308591d9c7787aec58f6a01a7823f14e90db7a2 (git)
Affected: 150d5be09ce49a9bed6feb7b7dc4e5ae188778ec , < 3d5f3ba1ac28059bdf7000cae2403e4e984308d2 (git)
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    Linux Linux Affected: 4.6
Unaffected: 0 , < 4.6 (semver)
Unaffected: 5.19.17 , ≤ 5.19.* (semver)
Unaffected: 6.0.3 , ≤ 6.0.* (semver)
Unaffected: 6.1 , ≤ * (original_commit_for_fix)
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Show details on NVD website

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    "dateReserved": "2025-09-17T14:53:07.001Z",
    "dateUpdated": "2026-01-14T19:13:08.377Z",
    "state": "PUBLISHED"
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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---\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"5.19.17\", \"versionStartIncluding\": \"4.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.0.3\", \"versionStartIncluding\": \"4.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.1\", \"versionStartIncluding\": \"4.6\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-09-18T16:03:51.155Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2022-50406\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-01-14T19:13:08.377Z\", \"dateReserved\": \"2025-09-17T14:53:07.001Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2025-09-18T16:03:51.155Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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