CVE-2023-53862 (GCVE-0-2023-53862)

Vulnerability from cvelistv5 – Published: 2025-12-09 01:30 – Updated: 2025-12-09 01:30
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: hfs: fix missing hfs_bnode_get() in __hfs_bnode_create Syzbot found a kernel BUG in hfs_bnode_put(): kernel BUG at fs/hfs/bnode.c:466! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 3634 Comm: kworker/u4:5 Not tainted 6.1.0-rc7-syzkaller-00190-g97ee9d1c1696 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 Workqueue: writeback wb_workfn (flush-7:0) RIP: 0010:hfs_bnode_put+0x46f/0x480 fs/hfs/bnode.c:466 Code: 8a 80 ff e9 73 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c a0 fe ff ff 48 89 df e8 db 8a 80 ff e9 93 fe ff ff e8 a1 68 2c ff <0f> 0b e8 9a 68 2c ff 0f 0b 0f 1f 84 00 00 00 00 00 55 41 57 41 56 RSP: 0018:ffffc90003b4f258 EFLAGS: 00010293 RAX: ffffffff825e318f RBX: 0000000000000000 RCX: ffff8880739dd7c0 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffffc90003b4f430 R08: ffffffff825e2d9b R09: ffffed10045157d1 R10: ffffed10045157d1 R11: 1ffff110045157d0 R12: ffff8880228abe80 R13: ffff88807016c000 R14: dffffc0000000000 R15: ffff8880228abe00 FS: 0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fa6ebe88718 CR3: 000000001e93d000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: <TASK> hfs_write_inode+0x1bc/0xb40 write_inode fs/fs-writeback.c:1440 [inline] __writeback_single_inode+0x4d6/0x670 fs/fs-writeback.c:1652 writeback_sb_inodes+0xb3b/0x18f0 fs/fs-writeback.c:1878 __writeback_inodes_wb+0x125/0x420 fs/fs-writeback.c:1949 wb_writeback+0x440/0x7b0 fs/fs-writeback.c:2054 wb_check_start_all fs/fs-writeback.c:2176 [inline] wb_do_writeback fs/fs-writeback.c:2202 [inline] wb_workfn+0x827/0xef0 fs/fs-writeback.c:2235 process_one_work+0x877/0xdb0 kernel/workqueue.c:2289 worker_thread+0xb14/0x1330 kernel/workqueue.c:2436 kthread+0x266/0x300 kernel/kthread.c:376 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306 </TASK> The BUG_ON() is triggered at here: /* Dispose of resources used by a node */ void hfs_bnode_put(struct hfs_bnode *node) { if (node) { <skipped> BUG_ON(!atomic_read(&node->refcnt)); <- we have issue here!!!! <skipped> } } By tracing the refcnt, I found the node is created by hfs_bmap_alloc() with refcnt 1. Then the node is used by hfs_btree_write(). There is a missing of hfs_bnode_get() after find the node. The issue happened in following path: <alloc> hfs_bmap_alloc hfs_bnode_find __hfs_bnode_create <- allocate a new node with refcnt 1. hfs_bnode_put <- decrease the refcnt <write> hfs_btree_write hfs_bnode_find __hfs_bnode_create hfs_bnode_findhash <- find the node without refcnt increased. hfs_bnode_put <- trigger the BUG_ON() since refcnt is 0.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 062af3e9930762d1fd22946748d34e0d859e4a8e (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 3a9065a33988c02789722be612f7c42fb8ebbb22 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < eda6879272e4df5456afc36642052ea066f58410 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < dc9f78b6d254427a06e568f2887b1011ef3143ef (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2cab8db14566cf6a516c1f103a60cf6b7f54b1e5 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 8140cdc57bc5844cd5e1392673ec2dbf8fdc6940 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 38d72e6604b9f96dffcc0565090cc01622a37b2a (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < a9dc087fd3c484fd1ed18c5efb290efaaf44ce03 (git)
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    Linux Linux Unaffected: 4.14.308 , ≤ 4.14.* (semver)
Unaffected: 4.19.276 , ≤ 4.19.* (semver)
Unaffected: 5.4.235 , ≤ 5.4.* (semver)
Unaffected: 5.10.173 , ≤ 5.10.* (semver)
Unaffected: 5.15.99 , ≤ 5.15.* (semver)
Unaffected: 6.1.16 , ≤ 6.1.* (semver)
Unaffected: 6.2.3 , ≤ 6.2.* (semver)
Unaffected: 6.3 , ≤ * (original_commit_for_fix)
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{
  "containers": {
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          "programFiles": [
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              "version": "5.15.99",
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              "status": "unaffected",
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      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nhfs: fix missing hfs_bnode_get() in __hfs_bnode_create\n\nSyzbot found a kernel BUG in hfs_bnode_put():\n\n kernel BUG at fs/hfs/bnode.c:466!\n invalid opcode: 0000 [#1] PREEMPT SMP KASAN\n CPU: 0 PID: 3634 Comm: kworker/u4:5 Not tainted 6.1.0-rc7-syzkaller-00190-g97ee9d1c1696 #0\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\n Workqueue: writeback wb_workfn (flush-7:0)\n RIP: 0010:hfs_bnode_put+0x46f/0x480 fs/hfs/bnode.c:466\n Code: 8a 80 ff e9 73 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c a0 fe ff ff 48 89 df e8 db 8a 80 ff e9 93 fe ff ff e8 a1 68 2c ff \u003c0f\u003e 0b e8 9a 68 2c ff 0f 0b 0f 1f 84 00 00 00 00 00 55 41 57 41 56\n RSP: 0018:ffffc90003b4f258 EFLAGS: 00010293\n RAX: ffffffff825e318f RBX: 0000000000000000 RCX: ffff8880739dd7c0\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\n RBP: ffffc90003b4f430 R08: ffffffff825e2d9b R09: ffffed10045157d1\n R10: ffffed10045157d1 R11: 1ffff110045157d0 R12: ffff8880228abe80\n R13: ffff88807016c000 R14: dffffc0000000000 R15: ffff8880228abe00\n FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007fa6ebe88718 CR3: 000000001e93d000 CR4: 00000000003506f0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n  \u003cTASK\u003e\n  hfs_write_inode+0x1bc/0xb40\n  write_inode fs/fs-writeback.c:1440 [inline]\n  __writeback_single_inode+0x4d6/0x670 fs/fs-writeback.c:1652\n  writeback_sb_inodes+0xb3b/0x18f0 fs/fs-writeback.c:1878\n  __writeback_inodes_wb+0x125/0x420 fs/fs-writeback.c:1949\n  wb_writeback+0x440/0x7b0 fs/fs-writeback.c:2054\n  wb_check_start_all fs/fs-writeback.c:2176 [inline]\n  wb_do_writeback fs/fs-writeback.c:2202 [inline]\n  wb_workfn+0x827/0xef0 fs/fs-writeback.c:2235\n  process_one_work+0x877/0xdb0 kernel/workqueue.c:2289\n  worker_thread+0xb14/0x1330 kernel/workqueue.c:2436\n  kthread+0x266/0x300 kernel/kthread.c:376\n  ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306\n  \u003c/TASK\u003e\n\nThe BUG_ON() is triggered at here:\n\n/* Dispose of resources used by a node */\nvoid hfs_bnode_put(struct hfs_bnode *node)\n{\n\tif (node) {\n \t\t\u003cskipped\u003e\n \t\tBUG_ON(!atomic_read(\u0026node-\u003erefcnt)); \u003c- we have issue here!!!!\n \t\t\u003cskipped\u003e\n \t}\n}\n\nBy tracing the refcnt, I found the node is created by hfs_bmap_alloc()\nwith refcnt 1.  Then the node is used by hfs_btree_write().  There is a\nmissing of hfs_bnode_get() after find the node.  The issue happened in\nfollowing path:\n\n\u003calloc\u003e\n hfs_bmap_alloc\n   hfs_bnode_find\n     __hfs_bnode_create   \u003c- allocate a new node with refcnt 1.\n   hfs_bnode_put          \u003c- decrease the refcnt\n\n\u003cwrite\u003e\n hfs_btree_write\n   hfs_bnode_find\n     __hfs_bnode_create\n       hfs_bnode_findhash \u003c- find the node without refcnt increased.\n   hfs_bnode_put\t  \u003c- trigger the BUG_ON() since refcnt is 0."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-09T01:30:30.902Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/062af3e9930762d1fd22946748d34e0d859e4a8e"
        },
        {
          "url": "https://git.kernel.org/stable/c/3a9065a33988c02789722be612f7c42fb8ebbb22"
        },
        {
          "url": "https://git.kernel.org/stable/c/eda6879272e4df5456afc36642052ea066f58410"
        },
        {
          "url": "https://git.kernel.org/stable/c/dc9f78b6d254427a06e568f2887b1011ef3143ef"
        },
        {
          "url": "https://git.kernel.org/stable/c/2cab8db14566cf6a516c1f103a60cf6b7f54b1e5"
        },
        {
          "url": "https://git.kernel.org/stable/c/8140cdc57bc5844cd5e1392673ec2dbf8fdc6940"
        },
        {
          "url": "https://git.kernel.org/stable/c/38d72e6604b9f96dffcc0565090cc01622a37b2a"
        },
        {
          "url": "https://git.kernel.org/stable/c/a9dc087fd3c484fd1ed18c5efb290efaaf44ce03"
        }
      ],
      "title": "hfs: fix missing hfs_bnode_get() in __hfs_bnode_create",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53862",
    "datePublished": "2025-12-09T01:30:30.902Z",
    "dateReserved": "2025-12-09T01:27:17.829Z",
    "dateUpdated": "2025-12-09T01:30:30.902Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53862\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-12-09T16:17:26.970\",\"lastModified\":\"2025-12-09T18:37:13.640\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nhfs: fix missing hfs_bnode_get() in __hfs_bnode_create\\n\\nSyzbot found a kernel BUG in hfs_bnode_put():\\n\\n kernel BUG at fs/hfs/bnode.c:466!\\n invalid opcode: 0000 [#1] PREEMPT SMP KASAN\\n CPU: 0 PID: 3634 Comm: kworker/u4:5 Not tainted 6.1.0-rc7-syzkaller-00190-g97ee9d1c1696 #0\\n Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022\\n Workqueue: writeback wb_workfn (flush-7:0)\\n RIP: 0010:hfs_bnode_put+0x46f/0x480 fs/hfs/bnode.c:466\\n Code: 8a 80 ff e9 73 fe ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c a0 fe ff ff 48 89 df e8 db 8a 80 ff e9 93 fe ff ff e8 a1 68 2c ff \u003c0f\u003e 0b e8 9a 68 2c ff 0f 0b 0f 1f 84 00 00 00 00 00 55 41 57 41 56\\n RSP: 0018:ffffc90003b4f258 EFLAGS: 00010293\\n RAX: ffffffff825e318f RBX: 0000000000000000 RCX: ffff8880739dd7c0\\n RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000\\n RBP: ffffc90003b4f430 R08: ffffffff825e2d9b R09: ffffed10045157d1\\n R10: ffffed10045157d1 R11: 1ffff110045157d0 R12: ffff8880228abe80\\n R13: ffff88807016c000 R14: dffffc0000000000 R15: ffff8880228abe00\\n FS:  0000000000000000(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000\\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\n CR2: 00007fa6ebe88718 CR3: 000000001e93d000 CR4: 00000000003506f0\\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\n Call Trace:\\n  \u003cTASK\u003e\\n  hfs_write_inode+0x1bc/0xb40\\n  write_inode fs/fs-writeback.c:1440 [inline]\\n  __writeback_single_inode+0x4d6/0x670 fs/fs-writeback.c:1652\\n  writeback_sb_inodes+0xb3b/0x18f0 fs/fs-writeback.c:1878\\n  __writeback_inodes_wb+0x125/0x420 fs/fs-writeback.c:1949\\n  wb_writeback+0x440/0x7b0 fs/fs-writeback.c:2054\\n  wb_check_start_all fs/fs-writeback.c:2176 [inline]\\n  wb_do_writeback fs/fs-writeback.c:2202 [inline]\\n  wb_workfn+0x827/0xef0 fs/fs-writeback.c:2235\\n  process_one_work+0x877/0xdb0 kernel/workqueue.c:2289\\n  worker_thread+0xb14/0x1330 kernel/workqueue.c:2436\\n  kthread+0x266/0x300 kernel/kthread.c:376\\n  ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306\\n  \u003c/TASK\u003e\\n\\nThe BUG_ON() is triggered at here:\\n\\n/* Dispose of resources used by a node */\\nvoid hfs_bnode_put(struct hfs_bnode *node)\\n{\\n\\tif (node) {\\n \\t\\t\u003cskipped\u003e\\n \\t\\tBUG_ON(!atomic_read(\u0026node-\u003erefcnt)); \u003c- we have issue here!!!!\\n \\t\\t\u003cskipped\u003e\\n \\t}\\n}\\n\\nBy tracing the refcnt, I found the node is created by hfs_bmap_alloc()\\nwith refcnt 1.  Then the node is used by hfs_btree_write().  There is a\\nmissing of hfs_bnode_get() after find the node.  The issue happened in\\nfollowing path:\\n\\n\u003calloc\u003e\\n hfs_bmap_alloc\\n   hfs_bnode_find\\n     __hfs_bnode_create   \u003c- allocate a new node with refcnt 1.\\n   hfs_bnode_put          \u003c- decrease the refcnt\\n\\n\u003cwrite\u003e\\n hfs_btree_write\\n   hfs_bnode_find\\n     __hfs_bnode_create\\n       hfs_bnode_findhash \u003c- find the node without refcnt increased.\\n   hfs_bnode_put\\t  \u003c- trigger the BUG_ON() since refcnt is 0.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/062af3e9930762d1fd22946748d34e0d859e4a8e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2cab8db14566cf6a516c1f103a60cf6b7f54b1e5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/38d72e6604b9f96dffcc0565090cc01622a37b2a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/3a9065a33988c02789722be612f7c42fb8ebbb22\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8140cdc57bc5844cd5e1392673ec2dbf8fdc6940\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a9dc087fd3c484fd1ed18c5efb290efaaf44ce03\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/dc9f78b6d254427a06e568f2887b1011ef3143ef\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/eda6879272e4df5456afc36642052ea066f58410\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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Detection rules are retrieved from Rulezet.