{
   "containers": {
      "cna": {
         "providerMetadata": {
            "orgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038"
         },
         "descriptions": [
            {
               "lang": "en",
               "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/hfi1: Fix AIP early init panic\n\nAn early failure in hfi1_ipoib_setup_rn() can lead to the following panic:\n\n  BUG: unable to handle kernel NULL pointer dereference at 00000000000001b0\n  PGD 0 P4D 0\n  Oops: 0002 [#1] SMP NOPTI\n  Workqueue: events work_for_cpu_fn\n  RIP: 0010:try_to_grab_pending+0x2b/0x140\n  Code: 1f 44 00 00 41 55 41 54 55 48 89 d5 53 48 89 fb 9c 58 0f 1f 44 00 00 48 89 c2 fa 66 0f 1f 44 00 00 48 89 55 00 40 84 f6 75 77 <f0> 48 0f ba 2b 00 72 09 31 c0 5b 5d 41 5c 41 5d c3 48 89 df e8 6c\n  RSP: 0018:ffffb6b3cf7cfa48 EFLAGS: 00010046\n  RAX: 0000000000000246 RBX: 00000000000001b0 RCX: 0000000000000000\n  RDX: 0000000000000246 RSI: 0000000000000000 RDI: 00000000000001b0\n  RBP: ffffb6b3cf7cfa70 R08: 0000000000000f09 R09: 0000000000000001\n  R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000\n  R13: ffffb6b3cf7cfa90 R14: ffffffff9b2fbfc0 R15: ffff8a4fdf244690\n  FS:  0000000000000000(0000) GS:ffff8a527f400000(0000) knlGS:0000000000000000\n  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n  CR2: 00000000000001b0 CR3: 00000017e2410003 CR4: 00000000007706f0\n  DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n  DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n  PKRU: 55555554\n  Call Trace:\n   __cancel_work_timer+0x42/0x190\n   ? dev_printk_emit+0x4e/0x70\n   iowait_cancel_work+0x15/0x30 [hfi1]\n   hfi1_ipoib_txreq_deinit+0x5a/0x220 [hfi1]\n   ? dev_err+0x6c/0x90\n   hfi1_ipoib_netdev_dtor+0x15/0x30 [hfi1]\n   hfi1_ipoib_setup_rn+0x10e/0x150 [hfi1]\n   rdma_init_netdev+0x5a/0x80 [ib_core]\n   ? hfi1_ipoib_free_rdma_netdev+0x20/0x20 [hfi1]\n   ipoib_intf_init+0x6c/0x350 [ib_ipoib]\n   ipoib_intf_alloc+0x5c/0xc0 [ib_ipoib]\n   ipoib_add_one+0xbe/0x300 [ib_ipoib]\n   add_client_context+0x12c/0x1a0 [ib_core]\n   enable_device_and_get+0xdc/0x1d0 [ib_core]\n   ib_register_device+0x572/0x6b0 [ib_core]\n   rvt_register_device+0x11b/0x220 [rdmavt]\n   hfi1_register_ib_device+0x6b4/0x770 [hfi1]\n   do_init_one.isra.20+0x3e3/0x680 [hfi1]\n   local_pci_probe+0x41/0x90\n   work_for_cpu_fn+0x16/0x20\n   process_one_work+0x1a7/0x360\n   ? create_worker+0x1a0/0x1a0\n   worker_thread+0x1cf/0x390\n   ? create_worker+0x1a0/0x1a0\n   kthread+0x116/0x130\n   ? kthread_flush_work_fn+0x10/0x10\n   ret_from_fork+0x1f/0x40\n\nThe panic happens in hfi1_ipoib_txreq_deinit() because there is a NULL\nderef when hfi1_ipoib_netdev_dtor() is called in this error case.\n\nhfi1_ipoib_txreq_init() and hfi1_ipoib_rxq_init() are self unwinding so\nfix by adjusting the error paths accordingly.\n\nOther changes:\n- hfi1_ipoib_free_rdma_netdev() is deleted including the free_netdev()\n  since the netdev core code deletes calls free_netdev()\n- The switch to the accelerated entrances is moved to the success path."
            }
         ],
         "affected": [
            {
               "product": "Linux",
               "vendor": "Linux",
               "defaultStatus": "unaffected",
               "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
               "programFiles": [
                  "drivers/infiniband/hw/hfi1/ipoib_main.c"
               ],
               "versions": [
                  {
                     "version": "d99dc602e2a5",
                     "lessThan": "4a9bd1e6780f",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d99dc602e2a5",
                     "lessThan": "a3dd4d2682f2",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d99dc602e2a5",
                     "lessThan": "1899c3cad265",
                     "status": "affected",
                     "versionType": "git"
                  },
                  {
                     "version": "d99dc602e2a5",
                     "lessThan": "5f8f55b92edd",
                     "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/hw/hfi1/ipoib_main.c"
               ],
               "versions": [
                  {
                     "version": "5.8",
                     "status": "affected"
                  },
                  {
                     "version": "0",
                     "lessThan": "5.8",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.10.99",
                     "lessThanOrEqual": "5.10.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.15.22",
                     "lessThanOrEqual": "5.15.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.16.8",
                     "lessThanOrEqual": "5.16.*",
                     "status": "unaffected",
                     "versionType": "custom"
                  },
                  {
                     "version": "5.17",
                     "lessThanOrEqual": "*",
                     "status": "unaffected",
                     "versionType": "original_commit_for_fix"
                  }
               ]
            }
         ],
         "references": [
            {
               "url": "https://git.kernel.org/stable/c/4a9bd1e6780fc59f81466ec3489d5ad535a37190"
            },
            {
               "url": "https://git.kernel.org/stable/c/a3dd4d2682f2a796121609e5f3bbeb1243198c53"
            },
            {
               "url": "https://git.kernel.org/stable/c/1899c3cad265c4583658aed5293d02e8af84276b"
            },
            {
               "url": "https://git.kernel.org/stable/c/5f8f55b92edd621f056bdf09e572092849fabd83"
            }
         ],
         "title": "IB/hfi1: Fix AIP early init panic",
         "x_generator": {
            "engine": "bippy-7d53e8ef8be4"
         }
      }
   },
   "cveMetadata": {
      "assignerOrgId": "f4215fc3-5b6b-47ff-a258-f7189bd81038",
      "cveID": "CVE-2022-48728",
      "requesterUserId": "gregkh@kernel.org",
      "serial": "1",
      "state": "PUBLISHED"
   },
   "dataType": "CVE_RECORD",
   "dataVersion": "5.0"
}