{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/rxe: Return CQE error if invalid lkey was supplied\n\nRXE is missing update of WQE status in LOCAL_WRITE failures.  This caused\nthe following kernel panic if someone sent an atomic operation with an\nexplicitly wrong lkey.\n\n[leonro@vm ~]$ mkt test\ntest_atomic_invalid_lkey (tests.test_atomic.AtomicTest) ...\n WARNING: CPU: 5 PID: 263 at drivers/infiniband/sw/rxe/rxe_comp.c:740 rxe_completer+0x1a6d/0x2e30 [rdma_rxe]\n Modules linked in: crc32_generic rdma_rxe ip6_udp_tunnel udp_tunnel rdma_ucm rdma_cm ib_umad ib_ipoib iw_cm ib_cm mlx5_ib ib_uverbs ib_core mlx5_core ptp pps_core\n CPU: 5 PID: 263 Comm: python3 Not tainted 5.13.0-rc1+ #2936\n Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014\n RIP: 0010:rxe_completer+0x1a6d/0x2e30 [rdma_rxe]\n Code: 03 0f 8e 65 0e 00 00 3b 93 10 06 00 00 0f 84 82 0a 00 00 4c 89 ff 4c 89 44 24 38 e8 2d 74 a9 e1 4c 8b 44 24 38 e9 1c f5 ff ff <0f> 0b e9 0c e8 ff ff b8 05 00 00 00 41 bf 05 00 00 00 e9 ab e7 ff\n RSP: 0018:ffff8880158af090 EFLAGS: 00010246\n RAX: 0000000000000000 RBX: ffff888016a78000 RCX: ffffffffa0cf1652\n RDX: 1ffff9200004b442 RSI: 0000000000000004 RDI: ffffc9000025a210\n RBP: dffffc0000000000 R08: 00000000ffffffea R09: ffff88801617740b\n R10: ffffed1002c2ee81 R11: 0000000000000007 R12: ffff88800f3b63e8\n R13: ffff888016a78008 R14: ffffc9000025a180 R15: 000000000000000c\n FS:  00007f88b622a740(0000) GS:ffff88806d540000(0000) knlGS:0000000000000000\n CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 00007f88b5a1fa10 CR3: 000000000d848004 CR4: 0000000000370ea0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n Call Trace:\n  rxe_do_task+0x130/0x230 [rdma_rxe]\n  rxe_rcv+0xb11/0x1df0 [rdma_rxe]\n  rxe_loopback+0x157/0x1e0 [rdma_rxe]\n  rxe_responder+0x5532/0x7620 [rdma_rxe]\n  rxe_do_task+0x130/0x230 [rdma_rxe]\n  rxe_rcv+0x9c8/0x1df0 [rdma_rxe]\n  rxe_loopback+0x157/0x1e0 [rdma_rxe]\n  rxe_requester+0x1efd/0x58c0 [rdma_rxe]\n  rxe_do_task+0x130/0x230 [rdma_rxe]\n  rxe_post_send+0x998/0x1860 [rdma_rxe]\n  ib_uverbs_post_send+0xd5f/0x1220 [ib_uverbs]\n  ib_uverbs_write+0x847/0xc80 [ib_uverbs]\n  vfs_write+0x1c5/0x840\n  ksys_write+0x176/0x1d0\n  do_syscall_64+0x3f/0x80\n  entry_SYSCALL_64_after_hwframe+0x44/0xae"
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/infiniband/sw/rxe/rxe_comp.c"
               ],
               "versions": [
                  {
                     "version": "8700e3e7c485",
                     "lessThan": "abe31d25facd",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "8700e3e7c485",
                     "lessThan": "dc07628bd2bb",
                     "status": "affected",
                     "versionType": "git"
                  }
               ]
            },
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "affected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/infiniband/sw/rxe/rxe_comp.c"
               ],
               "versions": [
                  {
                     "version": "4.8",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "4.8",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.12.7",
                     "lessThanOrEqual": "5.12.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.13",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/abe31d25facdb9109fe2cf69890748295291570c"
            },
            {
               "url": "https://git.kernel.org/stable/c/dc07628bd2bbc1da768e265192c28ebd301f509d"
            }
         ],
         "title": "RDMA/rxe: Return CQE error if invalid lkey was supplied",
         "x_generator": {
            "engine": "bippy-a5840b7849dd"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2021-47076",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}