326 lines
17 KiB
JSON
326 lines
17 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-2022-49321",
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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": "2025-02-26T02:08:31.537Z",
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"datePublished": "2025-02-26T02:10:46.186Z",
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"dateUpdated": "2026-08-05T08:54:42.523Z"
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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": "2026-08-05T08:54:42.523Z"
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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\nxprtrdma: treat all calls not a bcall when bc_serv is NULL\n\nWhen a rdma server returns a fault format reply, nfs v3 client may\ntreats it as a bcall when bc service is not exist.\n\nThe debug message at rpcrdma_bc_receive_call are,\n\n[56579.837169] RPC: rpcrdma_bc_receive_call: callback XID\n00000001, length=20\n[56579.837174] RPC: rpcrdma_bc_receive_call: 00 00 00 01 00 00 00\n00 00 00 00 00 00 00 00 00 00 00 00 04\n\nAfter that, rpcrdma_bc_receive_call will meets NULL pointer as,\n\n[ 226.057890] BUG: unable to handle kernel NULL pointer dereference at\n00000000000000c8\n...\n[ 226.058704] RIP: 0010:_raw_spin_lock+0xc/0x20\n...\n[ 226.059732] Call Trace:\n[ 226.059878] rpcrdma_bc_receive_call+0x138/0x327 [rpcrdma]\n[ 226.060011] __ib_process_cq+0x89/0x170 [ib_core]\n[ 226.060092] ib_cq_poll_work+0x26/0x80 [ib_core]\n[ 226.060257] process_one_work+0x1a7/0x360\n[ 226.060367] ? create_worker+0x1a0/0x1a0\n[ 226.060440] worker_thread+0x30/0x390\n[ 226.060500] ? create_worker+0x1a0/0x1a0\n[ 226.060574] kthread+0x116/0x130\n[ 226.060661] ? kthread_flush_work_fn+0x10/0x10\n[ 226.060724] ret_from_fork+0x35/0x40\n..."
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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 vulnerability is triggered by crafted RPC-over-RDMA messages delivered from a remote NFS/RDMA peer and handled on the client receive completion path (rpcrdma_wc_receive → rpcrdma_reply_handler → rpcrdma_is_bcall). Like other remote-peer protocol processing bugs, this is Network.\nAC:L - The remote peer fully controls the RDMA/RPC header fields used by the misclassification checks (rdma_msg, empty chunk lists, matching XIDs, RPC_CALL) and can reliably send such a message on an established connection; there is no race or other condition outside attacker control.\nPR:N - The attacker is the remote NFS/RDMA server peer and needs no privileges on the vulnerable client; once the client has an RDMA transport, the malicious reply path has no credential or capability gate.\nUI:N - In the highest-impact reasonable deployment (HPC/enterprise clients with existing NFS-over-RDMA mounts), a compromised or malicious server can send the crafted reply during normal operation without any further victim action.\nS:U - Impact is confined to the client host kernel/RPC transport authority and does not cross a VM, IOMMU, or other separate security boundary.\nC:N - The flaw is a pure NULL pointer dereference of xprt->bc_serv when taking sv_cb_lock; it does not read attacker-influenced memory or otherwise disclose kernel data.\nI:N - There is no memory corruption, write primitive, or control-flow hijack beyond the immediate NULL dereference crash.\nA:H - The NULL dereference causes a kernel oops/panic as shown in the fix commit crash trace (spin_lock on bc_serv->sv_cb_lock), which is a high availability impact and can be repeated by the remote peer."
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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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"net/sunrpc/xprtrdma/rpc_rdma.c"
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],
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"versions": [
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{
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"version": "63cae47005af51c937f4cdcc4835f29075add2ba",
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"lessThan": "8e3943c50764dc7c5f25911970c3ff062ec1f18c",
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"status": "affected",
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},
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{
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"version": "63cae47005af51c937f4cdcc4835f29075add2ba",
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"lessThan": "998d35a2aff4b81a1c784f3aa45cd3afff6814c1",
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"status": "affected",
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},
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"lessThan": "da99331fa62131a38a0947a8204c5208de7b0454",
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"status": "affected",
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},
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{
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"lessThan": "a3fc8051ee061e31db13e2fe011e8e0b71a7f815",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "63cae47005af51c937f4cdcc4835f29075add2ba",
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"lessThan": "90c4f73104016748533a5707ecd15930fbeff402",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "63cae47005af51c937f4cdcc4835f29075add2ba",
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"lessThan": "91784f3d77b73885e1b2e6b59d3cbf0de0a1126a",
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"status": "affected",
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"versionType": "git"
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},
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{
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"version": "63cae47005af51c937f4cdcc4835f29075add2ba",
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"lessThan": "11270e7ca268e8d61b5d9e5c3a54bd1550642c9c",
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"status": "affected",
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"versionType": "git"
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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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"net/sunrpc/xprtrdma/rpc_rdma.c"
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],
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"versions": [
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{
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"version": "4.4",
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"status": "affected"
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},
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{
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"version": "0",
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"lessThan": "4.4",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.14.283",
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"lessThanOrEqual": "4.14.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "4.19.247",
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"lessThanOrEqual": "4.19.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.4.198",
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"lessThanOrEqual": "5.4.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.10.122",
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"lessThanOrEqual": "5.10.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.15.47",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.17.15",
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"lessThanOrEqual": "5.17.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.18.4",
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"lessThanOrEqual": "5.18.*",
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"status": "unaffected",
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"versionType": "semver"
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},
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{
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"version": "5.19",
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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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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"operator": "OR",
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"negate": false,
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"cpeMatch": [
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{
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"vulnerable": true,
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"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"versionStartIncluding": "4.4",
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"versionEndExcluding": "4.14.283"
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],
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"references": [
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{
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"url": "https://git.kernel.org/stable/c/8e3943c50764dc7c5f25911970c3ff062ec1f18c"
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},
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{
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"url": "https://git.kernel.org/stable/c/998d35a2aff4b81a1c784f3aa45cd3afff6814c1"
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},
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{
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"url": "https://git.kernel.org/stable/c/da99331fa62131a38a0947a8204c5208de7b0454"
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},
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{
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"url": "https://git.kernel.org/stable/c/8dbae5affbdbf524b48000f9d357925bb001e5f4"
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},
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{
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"url": "https://git.kernel.org/stable/c/a3fc8051ee061e31db13e2fe011e8e0b71a7f815"
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},
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{
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"url": "https://git.kernel.org/stable/c/90c4f73104016748533a5707ecd15930fbeff402"
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},
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{
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"url": "https://git.kernel.org/stable/c/91784f3d77b73885e1b2e6b59d3cbf0de0a1126a"
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},
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{
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"url": "https://git.kernel.org/stable/c/11270e7ca268e8d61b5d9e5c3a54bd1550642c9c"
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}
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],
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"title": "xprtrdma: treat all calls not a bcall when bc_serv is NULL",
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"x_generator": {
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"engine": "bippy-1.2.0"
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}
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},
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"adp": [
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{
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"metrics": [
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{
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"cvssV3_1": {
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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 5.5,
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"attackVector": "LOCAL",
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"baseSeverity": "MEDIUM",
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"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
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"integrityImpact": "NONE",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"confidentialityImpact": "NONE"
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}
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},
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{
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"other": {
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"type": "ssvc",
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"content": {
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"id": "CVE-2022-49321",
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"role": "CISA Coordinator",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"version": "2.0.3",
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"timestamp": "2025-10-01T19:43:44.893562Z"
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}
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}
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"type": "CWE",
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"cweId": "CWE-476",
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"description": "CWE-476 NULL Pointer Dereference"
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}
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]
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2025-10-01T19:46:56.703Z"
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}
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}
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]
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}
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} |