CVE-2022-50363 (GCVE-0-2022-50363)
Vulnerability from cvelistv5
Published
2025-09-17 14:56
Modified
2025-09-17 14:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: skmsg: pass gfp argument to alloc_sk_msg() syzbot found that alloc_sk_msg() could be called from a non sleepable context. sk_psock_verdict_recv() uses rcu_read_lock() protection. We need the callers to pass a gfp_t argument to avoid issues. syzbot report was: BUG: sleeping function called from invalid context at include/linux/sched/mm.h:274 in_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 3613, name: syz-executor414 preempt_count: 0, expected: 0 RCU nest depth: 1, expected: 0 INFO: lockdep is turned off. CPU: 0 PID: 3613 Comm: syz-executor414 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106 __might_resched+0x538/0x6a0 kernel/sched/core.c:9877 might_alloc include/linux/sched/mm.h:274 [inline] slab_pre_alloc_hook mm/slab.h:700 [inline] slab_alloc_node mm/slub.c:3162 [inline] slab_alloc mm/slub.c:3256 [inline] kmem_cache_alloc_trace+0x59/0x310 mm/slub.c:3287 kmalloc include/linux/slab.h:600 [inline] kzalloc include/linux/slab.h:733 [inline] alloc_sk_msg net/core/skmsg.c:507 [inline] sk_psock_skb_ingress_self+0x5c/0x330 net/core/skmsg.c:600 sk_psock_verdict_apply+0x395/0x440 net/core/skmsg.c:1014 sk_psock_verdict_recv+0x34d/0x560 net/core/skmsg.c:1201 tcp_read_skb+0x4a1/0x790 net/ipv4/tcp.c:1770 tcp_rcv_established+0x129d/0x1a10 net/ipv4/tcp_input.c:5971 tcp_v4_do_rcv+0x479/0xac0 net/ipv4/tcp_ipv4.c:1681 sk_backlog_rcv include/net/sock.h:1109 [inline] __release_sock+0x1d8/0x4c0 net/core/sock.c:2906 release_sock+0x5d/0x1c0 net/core/sock.c:3462 tcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1483 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg net/socket.c:734 [inline] __sys_sendto+0x46d/0x5f0 net/socket.c:2117 __do_sys_sendto net/socket.c:2129 [inline] __se_sys_sendto net/socket.c:2125 [inline] __x64_sys_sendto+0xda/0xf0 net/socket.c:2125 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2d1f274b95c6e4ba6a813b3b8e7a1a38d54a0a08
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/693ddd6ffc05b228ea1638f9d757c5d3541f9446
Impacted products
Vendor Product Version
Linux Linux Version: 43312915b5ba20741617dd2119e835205fa8580c
Version: 43312915b5ba20741617dd2119e835205fa8580c
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   Linux Linux Version: 6.0
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "net/core/skmsg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "693ddd6ffc05b228ea1638f9d757c5d3541f9446",
              "status": "affected",
              "version": "43312915b5ba20741617dd2119e835205fa8580c",
              "versionType": "git"
            },
            {
              "lessThan": "2d1f274b95c6e4ba6a813b3b8e7a1a38d54a0a08",
              "status": "affected",
              "version": "43312915b5ba20741617dd2119e835205fa8580c",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "net/core/skmsg.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.0"
            },
            {
              "lessThan": "6.0",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.0.*",
              "status": "unaffected",
              "version": "6.0.6",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.1",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.0.6",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1",
                  "versionStartIncluding": "6.0",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nskmsg: pass gfp argument to alloc_sk_msg()\n\nsyzbot found that alloc_sk_msg() could be called from a\nnon sleepable context. sk_psock_verdict_recv() uses\nrcu_read_lock() protection.\n\nWe need the callers to pass a gfp_t argument to avoid issues.\n\nsyzbot report was:\n\nBUG: sleeping function called from invalid context at include/linux/sched/mm.h:274\nin_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 3613, name: syz-executor414\npreempt_count: 0, expected: 0\nRCU nest depth: 1, expected: 0\nINFO: lockdep is turned off.\nCPU: 0 PID: 3613 Comm: syz-executor414 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022\nCall Trace:\n\u003cTASK\u003e\n__dump_stack lib/dump_stack.c:88 [inline]\ndump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106\n__might_resched+0x538/0x6a0 kernel/sched/core.c:9877\nmight_alloc include/linux/sched/mm.h:274 [inline]\nslab_pre_alloc_hook mm/slab.h:700 [inline]\nslab_alloc_node mm/slub.c:3162 [inline]\nslab_alloc mm/slub.c:3256 [inline]\nkmem_cache_alloc_trace+0x59/0x310 mm/slub.c:3287\nkmalloc include/linux/slab.h:600 [inline]\nkzalloc include/linux/slab.h:733 [inline]\nalloc_sk_msg net/core/skmsg.c:507 [inline]\nsk_psock_skb_ingress_self+0x5c/0x330 net/core/skmsg.c:600\nsk_psock_verdict_apply+0x395/0x440 net/core/skmsg.c:1014\nsk_psock_verdict_recv+0x34d/0x560 net/core/skmsg.c:1201\ntcp_read_skb+0x4a1/0x790 net/ipv4/tcp.c:1770\ntcp_rcv_established+0x129d/0x1a10 net/ipv4/tcp_input.c:5971\ntcp_v4_do_rcv+0x479/0xac0 net/ipv4/tcp_ipv4.c:1681\nsk_backlog_rcv include/net/sock.h:1109 [inline]\n__release_sock+0x1d8/0x4c0 net/core/sock.c:2906\nrelease_sock+0x5d/0x1c0 net/core/sock.c:3462\ntcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1483\nsock_sendmsg_nosec net/socket.c:714 [inline]\nsock_sendmsg net/socket.c:734 [inline]\n__sys_sendto+0x46d/0x5f0 net/socket.c:2117\n__do_sys_sendto net/socket.c:2129 [inline]\n__se_sys_sendto net/socket.c:2125 [inline]\n__x64_sys_sendto+0xda/0xf0 net/socket.c:2125\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\ndo_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80\nentry_SYSCALL_64_after_hwframe+0x63/0xcd"
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-17T14:56:15.047Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/693ddd6ffc05b228ea1638f9d757c5d3541f9446"
        },
        {
          "url": "https://git.kernel.org/stable/c/2d1f274b95c6e4ba6a813b3b8e7a1a38d54a0a08"
        }
      ],
      "title": "skmsg: pass gfp argument to alloc_sk_msg()",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2022-50363",
    "datePublished": "2025-09-17T14:56:15.047Z",
    "dateReserved": "2025-09-17T14:53:06.994Z",
    "dateUpdated": "2025-09-17T14:56:15.047Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2022-50363\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-09-17T15:15:35.107\",\"lastModified\":\"2025-09-18T13:43:34.310\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nskmsg: pass gfp argument to alloc_sk_msg()\\n\\nsyzbot found that alloc_sk_msg() could be called from a\\nnon sleepable context. sk_psock_verdict_recv() uses\\nrcu_read_lock() protection.\\n\\nWe need the callers to pass a gfp_t argument to avoid issues.\\n\\nsyzbot report was:\\n\\nBUG: sleeping function called from invalid context at include/linux/sched/mm.h:274\\nin_atomic(): 0, irqs_disabled(): 0, non_block: 0, pid: 3613, name: syz-executor414\\npreempt_count: 0, expected: 0\\nRCU nest depth: 1, expected: 0\\nINFO: lockdep is turned off.\\nCPU: 0 PID: 3613 Comm: syz-executor414 Not tainted 6.0.0-syzkaller-09589-g55be6084c8e0 #0\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022\\nCall Trace:\\n\u003cTASK\u003e\\n__dump_stack lib/dump_stack.c:88 [inline]\\ndump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106\\n__might_resched+0x538/0x6a0 kernel/sched/core.c:9877\\nmight_alloc include/linux/sched/mm.h:274 [inline]\\nslab_pre_alloc_hook mm/slab.h:700 [inline]\\nslab_alloc_node mm/slub.c:3162 [inline]\\nslab_alloc mm/slub.c:3256 [inline]\\nkmem_cache_alloc_trace+0x59/0x310 mm/slub.c:3287\\nkmalloc include/linux/slab.h:600 [inline]\\nkzalloc include/linux/slab.h:733 [inline]\\nalloc_sk_msg net/core/skmsg.c:507 [inline]\\nsk_psock_skb_ingress_self+0x5c/0x330 net/core/skmsg.c:600\\nsk_psock_verdict_apply+0x395/0x440 net/core/skmsg.c:1014\\nsk_psock_verdict_recv+0x34d/0x560 net/core/skmsg.c:1201\\ntcp_read_skb+0x4a1/0x790 net/ipv4/tcp.c:1770\\ntcp_rcv_established+0x129d/0x1a10 net/ipv4/tcp_input.c:5971\\ntcp_v4_do_rcv+0x479/0xac0 net/ipv4/tcp_ipv4.c:1681\\nsk_backlog_rcv include/net/sock.h:1109 [inline]\\n__release_sock+0x1d8/0x4c0 net/core/sock.c:2906\\nrelease_sock+0x5d/0x1c0 net/core/sock.c:3462\\ntcp_sendmsg+0x36/0x40 net/ipv4/tcp.c:1483\\nsock_sendmsg_nosec net/socket.c:714 [inline]\\nsock_sendmsg net/socket.c:734 [inline]\\n__sys_sendto+0x46d/0x5f0 net/socket.c:2117\\n__do_sys_sendto net/socket.c:2129 [inline]\\n__se_sys_sendto net/socket.c:2125 [inline]\\n__x64_sys_sendto+0xda/0xf0 net/socket.c:2125\\ndo_syscall_x64 arch/x86/entry/common.c:50 [inline]\\ndo_syscall_64+0x2b/0x70 arch/x86/entry/common.c:80\\nentry_SYSCALL_64_after_hwframe+0x63/0xcd\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2d1f274b95c6e4ba6a813b3b8e7a1a38d54a0a08\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/693ddd6ffc05b228ea1638f9d757c5d3541f9446\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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