{ "schema_version": "1.6.1", "id": "RPI-CVE-2024-35998", "modified": "2026-10-09T11:39:44Z", "upstream": [ "CVE-2024-35998" ], "published": "2024-05-20T09:48:48Z", "summary": "smb3: fix lock ordering potential deadlock in cifs_sync_mid_result", "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nsmb3: fix lock ordering potential deadlock in cifs_sync_mid_result\n\nCoverity spotted that the cifs_sync_mid_result function could deadlock\n\n\"Thread deadlock (ORDER_REVERSAL) lock_order: Calling spin_lock acquires\nlock TCP_Server_Info.srv_lock while holding lock TCP_Server_Info.mid_lock\"\n\nAddresses-Coverity: 1590401 (\"Thread deadlock (ORDER_REVERSAL)\")", "severity": [ { "type": "CVSS_V3", "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H" } ], "affected": [ { "package": { "ecosystem": "Raspberry Pi OS:12", "name": "linux" }, "versions": [ "1:6.1.47-1+rpt2", "1:6.1.47-1+rpt4", "1:6.1.54-1+rpt2", "1:6.1.58-1+rpt2", "1:6.1.63-1+rpt1", "1:6.1.73-1+rpt1", "1:6.6.20-1+rpt1", "1:6.6.28-1+rpt1" ], "ecosystem_specific": { "binaries": [ { "binary_name": "linux-image-6.1.0-rpi2-rpi-v6", "binary_version": "1:6.1.47-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi2-rpi-v7", "binary_version": "1:6.1.47-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi2-rpi-v7l", "binary_version": "1:6.1.47-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi2-rpi-v8", "binary_version": "1:6.1.47-1+rpt2" }, { "binary_name": "linux-image-6.1.0-rpi3-rpi-2712", "binary_version": "1:6.1.47-1+rpt4" }, { "binary_name": "linux-image-6.1.0-rpi3-rpi-v6", "binary_version": "1:6.1.47-1+rpt4" }, { "binary_name": "linux-image-6.1.0-rpi3-rpi-v7", "binary_version": "1:6.1.47-1+rpt4" }, { "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l", "binary_version": "1:6.1.47-1+rpt4" }, { "binary_name": "linux-image-6.1.0-rpi3-rpi-v8", "binary_version": "1:6.1.47-1+rpt4" }, { "binary_name": "linux-image-6.1.0-rpi4-rpi-2712", "binary_version": "1:6.1.54-1+rpt2" }, { 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"upstream_fixed": "6.1.90", "compiled_filter": false }, "1:6.1.54-1+rpt2": { "linux_commit": "2906f7abdc03d4a92b6b0e2e0c87ea2a9dffe8f7", "upstream_version": "6.1.54", "assessment": "commit ancestry (strak rule)", "upstream_fixed": "6.1.90" }, "1:6.1.58-1+rpt2": { "linux_commit": "ccf1586ad0663fa91238ac56abf6340d6d740d18", "upstream_version": "6.1.58", "assessment": "commit ancestry (strak rule)", "upstream_fixed": "6.1.90" }, "1:6.1.63-1+rpt1": { "linux_commit": null, "upstream_version": "6.1.63", "assessment": "upstream version (no usable Linux commit)", "upstream_fixed": "6.1.90" }, "1:6.1.73-1+rpt1": { "linux_commit": null, "upstream_version": "6.1.73", "assessment": "upstream version (no usable Linux commit)", "upstream_fixed": "6.1.90" }, "1:6.6.20-1+rpt1": { "linux_commit": "6f16847710cc0502450788b9f12f0a14d3429668", "upstream_version": "6.6.20", "assessment": "commit ancestry (strak rule)", "upstream_fixed": "6.6.30" }, "1:6.6.28-1+rpt1": { "linux_commit": "0c341f47adc3578cd5f817aa20ee2b7f9ae6b23e", "upstream_version": "6.6.28", "assessment": "commit ancestry (strak rule)", "upstream_fixed": "6.6.30" } } } } ], "references": [ { "type": "ADVISORY", "url": "https://www.cve.org/CVERecord?id=CVE-2024-35998" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/c7a4bca289e50bb4b2650f845c41bb3e453f4c66" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/699f8958dece132709c0bff6a9700999a2a63b75" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/8248224ab5b8ca7559b671917c224296a4d671fc" }, { "type": "FIX", "url": "https://git.kernel.org/stable/c/8861fd5180476f45f9e8853db154600469a0284f" } ], "database_specific": { "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git", "upstream_modified": "2026-08-05T11:52:36Z", "severity": { "source": "kernel CNA", "cvss_v3_score": 7.5, "cvss_v3_severity": "High", "scenario": "AV:N - Both halves of the lock-order reversal are driven by SMB3 response frames received from the remote server \u2014 `smb2_decrypt_offload()` runs on server-supplied encrypted read payloads, and the mid states examined in `cifs_sync_mid_result()` are set solely by response parsing (`dequeue_mid()`, `handle_read_data()`). A malicious, compromised, or MITM'd SMB server reaches the code purely over the network, matching this CNA's AV:N treatment of other cifs-client bugs (CVE-2024-39468, CVE-2024-42256).\nAC:L - The remote server controls both sides of the race \u2014 it chooses response size, encryption, timing, and error status, so it can drive `smb2_decrypt_offload()` into its `srv_lock`\u2192`mid_lock` branch on one CPU while forcing an unexpected mid state into `cifs_sync_mid_result()`'s `mid_lock`\u2192`srv_lock` path on another, and it can repeat this indefinitely. Where the attacker creates the race, AC is Low.\nPR:N - The attacker is the remote SMB peer (or a network attacker able to spoof/hijack the SMB connection); no account, credential, or local privilege on the victim host is required to send the responses that trigger the deadlock.\nUI:N - Exploitation needs no victim action \u2014 the CIFS share is already mounted as a normal deployment condition (fstab/automount), and ordinary background I/O supplies the requests whose responses the attacker manipulates.\nS:U - The deadlock is confined to the kernel of the affected client machine; no VM, IOMMU, or sandbox boundary is crossed.\nC:N - The bug is purely a lock acquisition-order violation \u2014 no memory is read out of bounds, no freed object is accessed, and no data is disclosed.\nI:N - No memory corruption, out-of-bounds write, or data modification occurs; the flaw only affects the order in which two spinlocks are taken.\nA:H - An ABBA deadlock on `srv_lock`/`mid_lock` permanently wedges two CPUs spinning with preemption disabled while holding both locks, hanging all CIFS I/O and every subsequent taker of either lock, resulting in a hard lockup/panic." } } }