xprtrdma: Decrement re_receiving on the early exit paths_CVE-2026-43469

{
    "lastseen": "",
    "description": "In the Linux kernel, the following vulnerability has been resolved:\n\nxprtrdma: Decrement re_receiving on the early exit paths\n\nIn the event that rpcrdma_post_recvs() fails to create a work request\n(due to memory allocation failure, say) or otherwise exits early, we\nshould decrement ep->re_receiving before returning. Otherwise we will\nhang in rpcrdma_xprt_drain() as re_receiving will never reach zero and\nthe completion will never be triggered.\n\nOn a system with high memory pressure, this can appear as the following\nhung task:\n\n    INFO: task kworker/u385:17:8393 blocked for more than 122 seconds.\n          Tainted: G S          E       6.19.0 #3\n    \"echo 0 > /proc/sys/kernel/hung_task_timeout_secs\" disables this message.\n    task:kworker/u385:17 state:D stack:0     pid:8393  tgid:8393  ppid:2      task_flags:0x4248060 flags:0x00080000\n    Workqueue: xprtiod xprt_autoclose [sunrpc]\n    Call Trace:\n     <TASK>\n     __schedule+0x48b/0x18b0\n     ? ib_post_send_mad+0x247/0xae0 [ib_core]\n     schedule+0x27/0xf0\n     schedule_timeout+0x104/0x110\n     __wait_for_common+0x98/0x180\n     ? __pfx_schedule_timeout+0x10/0x10\n     wait_for_completion+0x24/0x40\n     rpcrdma_xprt_disconnect+0x444/0x460 [rpcrdma]\n     xprt_rdma_close+0x12/0x40 [rpcrdma]\n     xprt_autoclose+0x5f/0x120 [sunrpc]\n     process_one_work+0x191/0x3e0\n     worker_thread+0x2e3/0x420\n     ? __pfx_worker_thread+0x10/0x10\n     kthread+0x10d/0x230\n     ? __pfx_kthread+0x10/0x10\n     ret_from_fork+0x273/0x2b0\n     ? __pfx_kthread+0x10/0x10\n     ret_from_fork_asm+0x1a/0x30",
    "published": "2026-05-08T14:22:29.550Z",
    "modified": "2026-05-11T06:34:57.133Z",
    "type": "cve",
    "title": "xprtrdma: Decrement re_receiving on the early exit paths",
    "source": "Linux",
    "references": "https://git.kernel.org/stable/c/7ea69259a60a364f56cf4aa9e2eafb588d1c762b\nhttps://git.kernel.org/stable/c/8cb6b5d8296b1f99a8d36849901ebabfe3f749db\nhttps://git.kernel.org/stable/c/74c39a47856bddcde7874f2196a00143b5cd0af9\nhttps://git.kernel.org/stable/c/49f53ee4e25297d886f14e31f355ad1c2735ddfb\nhttps://git.kernel.org/stable/c/8127b5fec04757c2a41ed65bca0b3266968efd3b\nhttps://git.kernel.org/stable/c/dc3ebd7e2d73dbd4d317785735ffa6c4a6384ddf\nhttps://git.kernel.org/stable/c/7b6275c80a0c81c5f8943272292dfe67730ce849",
    "id": "CVE-2026-43469",
    "bulletinFamily": "",
    "cwe": null,
    "cvelist": null,
    "sourceData": "Linux Linux 15788d1d1077ebe029c48842c738876516d85076\nLinux Linux 15788d1d1077ebe029c48842c738876516d85076\nLinux Linux 15788d1d1077ebe029c48842c738876516d85076\nLinux Linux 15788d1d1077ebe029c48842c738876516d85076\nLinux Linux 15788d1d1077ebe029c48842c738876516d85076\nLinux Linux 15788d1d1077ebe029c48842c738876516d85076\nLinux Linux 15788d1d1077ebe029c48842c738876516d85076\nLinux Linux 5.13",
    "sourceHref": "",
    "cvss": {
        "score": 7.5,
        "severity": "HIGH",
        "vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
        "version": "3.1"
    },
    "cvss2": [],
    "cvss3": {
        "version": "",
        "vectorString": "",
        "baseScore": 0,
        "baseSeverity": "",
        "attackVector": "",
        "attackComplexity": "",
        "privilegesRequired": "",
        "userInteraction": "",
        "scope": "",
        "confidentialityImpact": "",
        "integrityImpact": "",
        "availabilityImpact": "",
        "cvssV3": {
            "version": "",
            "vectorString": "",
            "baseScore": 0,
            "baseSeverity": "",
            "attackVector": "",
            "attackComplexity": "",
            "privilegesRequired": "",
            "userInteraction": "",
            "scope": "",
            "confidentialityImpact": "",
            "integrityImpact": "",
            "availabilityImpact": ""
        }
    },
    "href": "",
    "category_name": "CVE",
    "post_link": "",
    "product": "Linux",
    "version": "15788d1d1077ebe029c48842c738876516d85076",
    "vendor": "Linux",
    "ai_description": "",
    "ai_severity": "",
    "ai_vendor": "",
    "ai_product": "",
    "ai_version": "",
    "ai_score": 0
}