suse-su-2025:01956-1
Vulnerability from csaf_suse
Published
2025-06-13 16:04
Modified
2025-06-13 16:04
Summary
Security update for the Linux Kernel (Live Patch 54 for SLE 15 SP3)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 54 for SLE 15 SP3)
Description of the patch
This update for the Linux Kernel 5.3.18-150300_59_195 fixes several issues. The following security issues were fixed: - CVE-2022-49080: mm/mempolicy: fix mpol_new leak in shared_policy_replace (bsc#1238324). - CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239077). - CVE-2022-49563: crypto: qat - add param check for RSA (bsc#1238788). - CVE-2022-49564: crypto: qat - add param check for DH (bsc#1238790).
Patchnames
SUSE-2025-1956,SUSE-SLE-Module-Live-Patching-15-SP3-2025-1956
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).



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    "distribution": {
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        "text": "This update for the Linux Kernel 5.3.18-150300_59_195 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2022-49080: mm/mempolicy: fix mpol_new leak in shared_policy_replace (bsc#1238324).\n- CVE-2024-57996: net_sched: sch_sfq: do not allow 1 packet limit (bsc#1239077).\n- CVE-2022-49563: crypto: qat - add param check for RSA (bsc#1238788).\n- CVE-2022-49564: crypto: qat - add param check for DH (bsc#1238790).\n",
        "title": "Description of the patch"
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        "title": "Patchnames"
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  "vulnerabilities": [
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      "ids": [
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2022-49080"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/mempolicy: fix mpol_new leak in shared_policy_replace\n\nIf mpol_new is allocated but not used in restart loop, mpol_new will be\nfreed via mpol_put before returning to the caller.  But refcnt is not\ninitialized yet, so mpol_put could not do the right things and might\nleak the unused mpol_new.  This would happen if mempolicy was updated on\nthe shared shmem file while the sp-\u003elock has been dropped during the\nmemory allocation.\n\nThis issue could be triggered easily with the below code snippet if\nthere are many processes doing the below work at the same time:\n\n  shmid = shmget((key_t)5566, 1024 * PAGE_SIZE, 0666|IPC_CREAT);\n  shm = shmat(shmid, 0, 0);\n  loop many times {\n    mbind(shm, 1024 * PAGE_SIZE, MPOL_LOCAL, mask, maxnode, 0);\n    mbind(shm + 128 * PAGE_SIZE, 128 * PAGE_SIZE, MPOL_DEFAULT, mask,\n          maxnode, 0);\n  }",
          "title": "CVE description"
        }
      ],
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          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2022-49080",
          "url": "https://www.suse.com/security/cve/CVE-2022-49080"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1238033 for CVE-2022-49080",
          "url": "https://bugzilla.suse.com/1238033"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1238324 for CVE-2022-49080",
          "url": "https://bugzilla.suse.com/1238324"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.x86_64"
          ]
        }
      ],
      "scores": [
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            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
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          "products": [
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            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.x86_64"
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      "title": "CVE-2022-49080"
    },
    {
      "cve": "CVE-2022-49563",
      "ids": [
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2022-49563"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qat - add param check for RSA\n\nReject requests with a source buffer that is bigger than the size of the\nkey. This is to prevent a possible integer underflow that might happen\nwhen copying the source scatterlist into a linear buffer.",
          "title": "CVE description"
        }
      ],
      "product_status": {
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          "url": "https://bugzilla.suse.com/1238787"
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        }
      ],
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          "product_ids": [
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            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.x86_64"
          ]
        }
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            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.s390x",
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          "text": "https://www.suse.com/security/cve/CVE-2022-49564"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qat - add param check for DH\n\nReject requests with a source buffer that is bigger than the size of the\nkey. This is to prevent a possible integer underflow that might happen\nwhen copying the source scatterlist into a linear buffer.",
          "title": "CVE description"
        }
      ],
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          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.x86_64"
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          "url": "https://www.suse.com/security/cve/CVE-2022-49564"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1238789 for CVE-2022-49564",
          "url": "https://bugzilla.suse.com/1238789"
        },
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          "summary": "SUSE Bug 1238790 for CVE-2022-49564",
          "url": "https://bugzilla.suse.com/1238790"
        }
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          "product_ids": [
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            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.x86_64"
          ]
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      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
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          "date": "2025-06-13T16:04:11Z",
          "details": "important"
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    },
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      "ids": [
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          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2024-57996"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet_sched: sch_sfq: don\u0027t allow 1 packet limit\n\nThe current implementation does not work correctly with a limit of\n1. iproute2 actually checks for this and this patch adds the check in\nkernel as well.\n\nThis fixes the following syzkaller reported crash:\n\nUBSAN: array-index-out-of-bounds in net/sched/sch_sfq.c:210:6\nindex 65535 is out of range for type \u0027struct sfq_head[128]\u0027\nCPU: 0 PID: 2569 Comm: syz-executor101 Not tainted 5.10.0-smp-DEV #1\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024\nCall Trace:\n  __dump_stack lib/dump_stack.c:79 [inline]\n  dump_stack+0x125/0x19f lib/dump_stack.c:120\n  ubsan_epilogue lib/ubsan.c:148 [inline]\n  __ubsan_handle_out_of_bounds+0xed/0x120 lib/ubsan.c:347\n  sfq_link net/sched/sch_sfq.c:210 [inline]\n  sfq_dec+0x528/0x600 net/sched/sch_sfq.c:238\n  sfq_dequeue+0x39b/0x9d0 net/sched/sch_sfq.c:500\n  sfq_reset+0x13/0x50 net/sched/sch_sfq.c:525\n  qdisc_reset+0xfe/0x510 net/sched/sch_generic.c:1026\n  tbf_reset+0x3d/0x100 net/sched/sch_tbf.c:319\n  qdisc_reset+0xfe/0x510 net/sched/sch_generic.c:1026\n  dev_reset_queue+0x8c/0x140 net/sched/sch_generic.c:1296\n  netdev_for_each_tx_queue include/linux/netdevice.h:2350 [inline]\n  dev_deactivate_many+0x6dc/0xc20 net/sched/sch_generic.c:1362\n  __dev_close_many+0x214/0x350 net/core/dev.c:1468\n  dev_close_many+0x207/0x510 net/core/dev.c:1506\n  unregister_netdevice_many+0x40f/0x16b0 net/core/dev.c:10738\n  unregister_netdevice_queue+0x2be/0x310 net/core/dev.c:10695\n  unregister_netdevice include/linux/netdevice.h:2893 [inline]\n  __tun_detach+0x6b6/0x1600 drivers/net/tun.c:689\n  tun_detach drivers/net/tun.c:705 [inline]\n  tun_chr_close+0x104/0x1b0 drivers/net/tun.c:3640\n  __fput+0x203/0x840 fs/file_table.c:280\n  task_work_run+0x129/0x1b0 kernel/task_work.c:185\n  exit_task_work include/linux/task_work.h:33 [inline]\n  do_exit+0x5ce/0x2200 kernel/exit.c:931\n  do_group_exit+0x144/0x310 kernel/exit.c:1046\n  __do_sys_exit_group kernel/exit.c:1057 [inline]\n  __se_sys_exit_group kernel/exit.c:1055 [inline]\n  __x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1055\n do_syscall_64+0x6c/0xd0\n entry_SYSCALL_64_after_hwframe+0x61/0xcb\nRIP: 0033:0x7fe5e7b52479\nCode: Unable to access opcode bytes at RIP 0x7fe5e7b5244f.\nRSP: 002b:00007ffd3c800398 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7\nRAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fe5e7b52479\nRDX: 000000000000003c RSI: 00000000000000e7 RDI: 0000000000000000\nRBP: 00007fe5e7bcd2d0 R08: ffffffffffffffb8 R09: 0000000000000014\nR10: 0000000000000000 R11: 0000000000000246 R12: 00007fe5e7bcd2d0\nR13: 0000000000000000 R14: 00007fe5e7bcdd20 R15: 00007fe5e7b24270\n\nThe crash can be also be reproduced with the following (with a tc\nrecompiled to allow for sfq limits of 1):\n\ntc qdisc add dev dummy0 handle 1: root tbf rate 1Kbit burst 100b lat 1s\n../iproute2-6.9.0/tc/tc qdisc add dev dummy0 handle 2: parent 1:10 sfq limit 1\nifconfig dummy0 up\nping -I dummy0 -f -c2 -W0.1 8.8.8.8\nsleep 1\n\nScenario that triggers the crash:\n\n* the first packet is sent and queued in TBF and SFQ; qdisc qlen is 1\n\n* TBF dequeues: it peeks from SFQ which moves the packet to the\n  gso_skb list and keeps qdisc qlen set to 1. TBF is out of tokens so\n  it schedules itself for later.\n\n* the second packet is sent and TBF tries to queues it to SFQ. qdisc\n  qlen is now 2 and because the SFQ limit is 1 the packet is dropped\n  by SFQ. At this point qlen is 1, and all of the SFQ slots are empty,\n  however q-\u003etail is not NULL.\n\nAt this point, assuming no more packets are queued, when sch_dequeue\nruns again it will decrement the qlen for the current empty slot\ncausing an underflow and the subsequent out of bounds access.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.s390x",
          "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2024-57996",
          "url": "https://www.suse.com/security/cve/CVE-2024-57996"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1239076 for CVE-2024-57996",
          "url": "https://bugzilla.suse.com/1239076"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1239077 for CVE-2024-57996",
          "url": "https://bugzilla.suse.com/1239077"
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.s390x",
            "SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-150300_59_195-default-2-150300.2.2.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2025-06-13T16:04:11Z",
          "details": "important"
        }
      ],
      "title": "CVE-2024-57996"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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