236 lines
12 KiB
JSON
236 lines
12 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-2022-48692",
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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": "2024-05-03T14:55:07.144Z",
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"datePublished": "2024-05-03T15:05:31.107Z",
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"dateUpdated": "2026-08-05T08:51:46.193Z"
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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": "2026-08-05T08:51:46.193Z"
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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\nRDMA/srp: Set scmnd->result only when scmnd is not NULL\n\nThis change fixes the following kernel NULL pointer dereference\nwhich is reproduced by blktests srp/007 occasionally.\n\nBUG: kernel NULL pointer dereference, address: 0000000000000170\nPGD 0 P4D 0\nOops: 0002 [#1] PREEMPT SMP NOPTI\nCPU: 0 PID: 9 Comm: kworker/0:1H Kdump: loaded Not tainted 6.0.0-rc1+ #37\nHardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.15.0-29-g6a62e0cb0dfe-prebuilt.qemu.org 04/01/2014\nWorkqueue: 0x0 (kblockd)\nRIP: 0010:srp_recv_done+0x176/0x500 [ib_srp]\nCode: 00 4d 85 ff 0f 84 52 02 00 00 48 c7 82 80 02 00 00 00 00 00 00 4c 89 df 4c 89 14 24 e8 53 d3 4a f6 4c 8b 14 24 41 0f b6 42 13 <41> 89 87 70 01 00 00 41 0f b6 52 12 f6 c2 02 74 44 41 8b 42 1c b9\nRSP: 0018:ffffaef7c0003e28 EFLAGS: 00000282\nRAX: 0000000000000000 RBX: ffff9bc9486dea60 RCX: 0000000000000000\nRDX: 0000000000000102 RSI: ffffffffb76bbd0e RDI: 00000000ffffffff\nRBP: ffff9bc980099a00 R08: 0000000000000001 R09: 0000000000000001\nR10: ffff9bca53ef0000 R11: ffff9bc980099a10 R12: ffff9bc956e14000\nR13: ffff9bc9836b9cb0 R14: ffff9bc9557b4480 R15: 0000000000000000\nFS: 0000000000000000(0000) GS:ffff9bc97ec00000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 0000000000000170 CR3: 0000000007e04000 CR4: 00000000000006f0\nCall Trace:\n <IRQ>\n __ib_process_cq+0xb7/0x280 [ib_core]\n ib_poll_handler+0x2b/0x130 [ib_core]\n irq_poll_softirq+0x93/0x150\n __do_softirq+0xee/0x4b8\n irq_exit_rcu+0xf7/0x130\n sysvec_apic_timer_interrupt+0x8e/0xc0\n </IRQ>"
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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 bug is in srp_recv_done/srp_process_rsp processing SRP_RSP payloads received over RDMA from the remote storage peer; SRP supports RDMA CM with IP destinations (RoCEv2/iWARP), so a malicious or compromised target can reach the vulnerable path across an L3/IP network.\nAC:L - A malicious target can induce SCSI timeouts (triggering srp_abort/srp_claim_req) by withholding completions, then send the delayed SRP_RSP to hit the claim-failed window, so the attacker controls both sides of the race.\nPR:N - Exploitation is performed by the remote SRP target peer sending RDMA responses; no privileges on the victim initiator host are required once an administrator has already established the SRP session.\nUI:N - No additional user action is needed at exploit time; the crash occurs on the IRQ/softirq receive completion path during an already-configured SRP session.\nS:U - Impact is a kernel oops in the initiator's own kernel security authority, with no VM escape, IOMMU bypass, or other cross-boundary effect.\nC:N - This is a pure NULL pointer write dereference (scmnd->result at NULL+offset) that faults without disclosing kernel memory.\nI:N - The faulting store never successfully corrupts kernel state under normal mmap_min_addr protections; there is no usable write primitive beyond the crash.\nA:H - The NULL dereference causes a kernel oops/crash (as shown in the reported srp_recv_done oops), fully impacting availability."
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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/infiniband/ulp/srp/ib_srp.c"
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],
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"versions": [
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{
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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/infiniband/ulp/srp/ib_srp.c"
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],
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"versions": [
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{
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"version": "5.14",
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"status": "affected"
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"version": "0",
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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": "5.15.68",
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"lessThanOrEqual": "5.15.*",
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"status": "unaffected",
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},
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{
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"version": "5.19.9",
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"lessThanOrEqual": "5.19.*",
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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": "6.0",
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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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"title": "RDMA/srp: Set scmnd->result only when scmnd is not NULL",
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"role": "CISA Coordinator",
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"options": [
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