228 lines
13 KiB
JSON
228 lines
13 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2024-49569",
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"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"state": "PUBLISHED",
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"assignerShortName": "Linux",
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"dateReserved": "2025-01-09T09:50:31.772Z",
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"datePublished": "2025-01-11T12:25:19.455Z",
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"dateUpdated": "2026-10-30T12:19:31.857Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"shortName": "Linux",
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"dateUpdated": "2026-10-30T12:19:31.857Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnvme-rdma: unquiesce admin_q before destroy it\n\nKernel will hang on destroy admin_q while we create ctrl failed, such\nas following calltrace:\n\nPID: 23644 TASK: ff2d52b40f439fc0 CPU: 2 COMMAND: \"nvme\"\n #0 [ff61d23de260fb78] __schedule at ffffffff8323bc15\n #1 [ff61d23de260fc08] schedule at ffffffff8323c014\n #2 [ff61d23de260fc28] blk_mq_freeze_queue_wait at ffffffff82a3dba1\n #3 [ff61d23de260fc78] blk_freeze_queue at ffffffff82a4113a\n #4 [ff61d23de260fc90] blk_cleanup_queue at ffffffff82a33006\n #5 [ff61d23de260fcb0] nvme_rdma_destroy_admin_queue at ffffffffc12686ce\n #6 [ff61d23de260fcc8] nvme_rdma_setup_ctrl at ffffffffc1268ced\n #7 [ff61d23de260fd28] nvme_rdma_create_ctrl at ffffffffc126919b\n #8 [ff61d23de260fd68] nvmf_dev_write at ffffffffc024f362\n #9 [ff61d23de260fe38] vfs_write at ffffffff827d5f25\n RIP: 00007fda7891d574 RSP: 00007ffe2ef06958 RFLAGS: 00000202\n RAX: ffffffffffffffda RBX: 000055e8122a4d90 RCX: 00007fda7891d574\n RDX: 000000000000012b RSI: 000055e8122a4d90 RDI: 0000000000000004\n RBP: 00007ffe2ef079c0 R8: 000000000000012b R9: 000055e8122a4d90\n R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004\n R13: 000055e8122923c0 R14: 000000000000012b R15: 00007fda78a54500\n ORIG_RAX: 0000000000000001 CS: 0033 SS: 002b\n\nThis due to we have quiesced admi_q before cancel requests, but forgot\nto unquiesce before destroy it, as a result we fail to drain the\npending requests, and hang on blk_mq_freeze_queue_wait() forever. Here\ntry to reuse nvme_rdma_teardown_admin_queue() to fix this issue and\nsimplify the code."
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"version": "3.1",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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"baseScore": 7.5,
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"baseSeverity": "HIGH"
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},
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"scenarios": [
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{
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"lang": "en",
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"value": "AV:N - The error path that hangs is selected entirely by data the remote NVMe-oF target supplies over the fabric (ICDOFF and the keyed-SGL bit in Identify Controller, or refusal of I/O-queue connect), and RoCEv2/iWARP are routable IP transports, so a malicious or compromised target reachable over the network drives the bug. NVMe-oF host/target sessions are ordinary network protocol exchanges, matching the treatment of other nvme fabrics host-side flaws.\nAC:L - The target only has to advertise a non-zero icdoff or clear NVME_CTRL_SGLS_KSDBDS to deterministically force the host into the destroy_admin path, and any admin request left undispatched on the quiesced queue makes the freeze wait forever. The attacker can also re-drive controller creation repeatedly via discovery-log-change AENs, so no condition outside their control must happen to line up.\nPR:N - The attacker is the remote peer and needs no credentials on the victim host — NVMe-oF requires no mandatory authentication, and there is no capable() check anywhere on the nvmf_dev_write → nvme_rdma_setup_ctrl path. The host-side privileged action is performed by the system's own autoconnect tooling, not by the attacker.\nUI:N - On hosts configured for NVMe-oF, systemd/udev autoconnect creates controllers (new=true) automatically in response to discovery-log-change AENs from the target, so no human action is needed at exploitation time.\nS:U - The hang is confined to the kernel's own block/NVMe layer and the calling process; no security authority or isolation boundary is crossed.\nC:N - The defect is a missing unquiesce leading to an indefinite wait in blk_mq_freeze_queue_wait(); no freed or out-of-bounds memory is read and nothing is disclosed to the attacker.\nI:N - There is no memory corruption, no write primitive, and no unintended state modification — the queue simply never drains, so no data can be altered.\nA:H - The calling task blocks forever in TASK_UNINTERRUPTIBLE and is unkillable, holding nvmf_dev_mutex so every later /dev/nvme-fabrics operation on the system wedges too, pinning the module and preventing clean shutdown; the hung-task watchdog fires and panics the box when hung_task_panic is set."
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}
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]
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}
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],
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"affected": [
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "unaffected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/nvme/host/rdma.c"
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],
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"versions": [
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{
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"version": "958dc1d32c80566f58d18f05ef1f05bd32d172c1",
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"lessThan": "53bdbe5dc80b5887af51d62bf44e50f56972db5f",
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"status": "affected",
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"versionType": "git"
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"version": "7da81eaf8710130a9e63d7429627183be5a93787",
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"versionType": "git"
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},
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{
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"version": "caed0b3851a4f52afd1ef77a27b30410fe7b68c7",
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"status": "affected",
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},
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{
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"version": "5.4.103",
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"lessThan": "5.5",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "5.10.21",
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"lessThan": "5.11",
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"status": "affected",
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"versionType": "semver"
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},
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{
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"version": "5.11.4",
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"lessThan": "5.12",
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"status": "affected",
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"versionType": "semver"
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}
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]
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},
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{
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"product": "Linux",
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"vendor": "Linux",
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"defaultStatus": "affected",
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"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
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"programFiles": [
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"drivers/nvme/host/rdma.c"
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],
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},
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},
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"lessThanOrEqual": "6.12.*",
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"status": "unaffected",
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},
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{
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"version": "6.13",
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"lessThanOrEqual": "*",
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"status": "unaffected",
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"versionType": "original_commit_for_fix"
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}
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/53bdbe5dc80b5887af51d62bf44e50f56972db5f"
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},
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{
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"url": "https://git.kernel.org/stable/c/427036030f4d796533dcadba9b845896cb6c10a7"
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{
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{
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"url": "https://git.kernel.org/stable/c/5858b687559809f05393af745cbadf06dee61295"
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}
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],
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"title": "nvme-rdma: unquiesce admin_q before destroy it",
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"x_generator": {
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} |