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CVE-2024-26877 (GCVE-0-2024-26877)

Vulnerability from cvelistv5 – Published: 2024-04-17 10:27 – Updated: 2026-08-05 11:28
VLAI
Title
crypto: xilinx - call finalize with bh disabled
Summary
In the Linux kernel, the following vulnerability has been resolved: crypto: xilinx - call finalize with bh disabled When calling crypto_finalize_request, BH should be disabled to avoid triggering the following calltrace: ------------[ cut here ]------------ WARNING: CPU: 2 PID: 74 at crypto/crypto_engine.c:58 crypto_finalize_request+0xa0/0x118 Modules linked in: cryptodev(O) CPU: 2 PID: 74 Comm: firmware:zynqmp Tainted: G O 6.8.0-rc1-yocto-standard #323 Hardware name: ZynqMP ZCU102 Rev1.0 (DT) pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : crypto_finalize_request+0xa0/0x118 lr : crypto_finalize_request+0x104/0x118 sp : ffffffc085353ce0 x29: ffffffc085353ce0 x28: 0000000000000000 x27: ffffff8808ea8688 x26: ffffffc081715038 x25: 0000000000000000 x24: ffffff880100db00 x23: ffffff880100da80 x22: 0000000000000000 x21: 0000000000000000 x20: ffffff8805b14000 x19: ffffff880100da80 x18: 0000000000010450 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000003 x13: 0000000000000000 x12: ffffff880100dad0 x11: 0000000000000000 x10: ffffffc0832dcd08 x9 : ffffffc0812416d8 x8 : 00000000000001f4 x7 : ffffffc0830d2830 x6 : 0000000000000001 x5 : ffffffc082091000 x4 : ffffffc082091658 x3 : 0000000000000000 x2 : ffffffc7f9653000 x1 : 0000000000000000 x0 : ffffff8802d20000 Call trace: crypto_finalize_request+0xa0/0x118 crypto_finalize_aead_request+0x18/0x30 zynqmp_handle_aes_req+0xcc/0x388 crypto_pump_work+0x168/0x2d8 kthread_worker_fn+0xfc/0x3a0 kthread+0x118/0x138 ret_from_fork+0x10/0x20 irq event stamp: 40 hardirqs last enabled at (39): [<ffffffc0812416f8>] _raw_spin_unlock_irqrestore+0x70/0xb0 hardirqs last disabled at (40): [<ffffffc08122d208>] el1_dbg+0x28/0x90 softirqs last enabled at (36): [<ffffffc080017dec>] kernel_neon_begin+0x8c/0xf0 softirqs last disabled at (34): [<ffffffc080017dc0>] kernel_neon_begin+0x60/0xf0 ---[ end trace 0000000000000000 ]---
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 15:48 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 4d96f7d48131fefe30d7c1d1e2a23ef37164dbf5 , < 8a01335aedc50a66d04dd39203c89f4bc8042596 (git)
Affected: 4d96f7d48131fefe30d7c1d1e2a23ef37164dbf5 , < 03e6d4e948432a61b35783323b6ab2be071d2619 (git)
Affected: 4d96f7d48131fefe30d7c1d1e2a23ef37164dbf5 , < a71f66bd5f7b9b35a8aaa49e29565eca66299399 (git)
Affected: 4d96f7d48131fefe30d7c1d1e2a23ef37164dbf5 , < 23bc89fdce71124cd2126fc919c7076e7cb489cf (git)
Affected: 4d96f7d48131fefe30d7c1d1e2a23ef37164dbf5 , < 9db89b1fb85557892e6681724b367287de5f9f20 (git)
Affected: 4d96f7d48131fefe30d7c1d1e2a23ef37164dbf5 , < dbf291d8ffffb70f48286176a15c6c54f0bb0743 (git)
Affected: 4d96f7d48131fefe30d7c1d1e2a23ef37164dbf5 , < a853450bf4c752e664abab0b2fad395b7ad7701c (git)
guessed Create a notification for this product.
Linux Linux Affected: 5.7
Unaffected: 0 , < 5.7 (semver)
Unaffected: 5.10.214 , ≤ 5.10.* (semver)
Unaffected: 5.15.153 , ≤ 5.15.* (semver)
Unaffected: 6.1.83 , ≤ 6.1.* (semver)
Unaffected: 6.6.23 , ≤ 6.6.* (semver)
Unaffected: 6.7.11 , ≤ 6.7.* (semver)
Unaffected: 6.8.2 , ≤ 6.8.* (semver)
Unaffected: 6.9 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Siemens SIMATIC S7-1500 TM MFP - GNU/Linux subsystem Affected: 0 , < * (custom)
guessed Create a notification for this product.
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              "value": "AV:N - The impactful instance of this bug is driven by remote traffic: inbound ESP packets to a ZynqMP IPsec endpoint reach `esp_input()` \u2192 async `gcm(aes)` on this engine \u2192 `esp_input_done()` running in the wrong context, which is exactly the \"iperf over ipsec\" scenario that motivated the `lockdep_assert_in_softirq()` check. Other remote consumers of `gcm(aes)` on the same driver (kTLS, ksmbd/SMB3 encryption) reach the same finalize path.\nAC:L - The BH-enabled completion happens on 100% of requests with no preconditions, and the attacker supplies both sides of the resulting race by simply sustaining packet flow \u2014 the racing NET_RX softirq is generated by the attacker\u0027s own traffic, and the preemptible/migratable kthread widens the window arbitrarily.\nPR:N - A remote peer needs no account or credential on the target; sending ESP packets that match an existing inbound SA queues the asynchronous decrypt, and the completion callback runs in the bad context regardless of whether the ICV ultimately validates.\nUI:N - No victim action is required \u2014 the crypto request is submitted and finalized automatically by the network stack as packets arrive.\nS:U - The context violation, the corrupted lists, the deadlock, and the crash are all confined to the kernel\u0027s own security authority; no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - `xfrm_input()` calls `gro_cells_receive()` unguarded, whose unlocked per-CPU `napi_skbs` list can be corrupted by a concurrent same-CPU `gro_cell_poll()`, yielding use-after-free reads of freed `sk_buff` slab memory that an attacker who reclaims the object can read back; the accompanying WARN also dumps full register and stack state to dmesg.\nI:H - The same unsynchronized `__skb_queue_tail`/`__skb_dequeue` interleaving leaves dangling `next`/`prev` pointers and lets one skb be dequeued and freed twice, giving a double-free/UAF write primitive over reclaimed heap objects; per-CPU `__this_cpu_inc` MIB state and the xfrm replay window are likewise updated without the atomicity they assume.\nA:H - Taking `x-\u003elock` with plain `spin_lock()` from a BH-enabled kthread while softirq paths take it with `spin_lock_bh()` produces same-CPU spinlock recursion \u2014 the exact deadlock/hard lockup the assert was added to catch \u2014 plus a `WARN_ON_ONCE` splat that panics outright on `panic_on_warn` kernels, and skb list corruption that oopses the machine."
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: xilinx - call finalize with bh disabled\n\nWhen calling crypto_finalize_request, BH should be disabled to avoid\ntriggering the following calltrace:\n\n    ------------[ cut here ]------------\n    WARNING: CPU: 2 PID: 74 at crypto/crypto_engine.c:58 crypto_finalize_request+0xa0/0x118\n    Modules linked in: cryptodev(O)\n    CPU: 2 PID: 74 Comm: firmware:zynqmp Tainted: G           O       6.8.0-rc1-yocto-standard #323\n    Hardware name: ZynqMP ZCU102 Rev1.0 (DT)\n    pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n    pc : crypto_finalize_request+0xa0/0x118\n    lr : crypto_finalize_request+0x104/0x118\n    sp : ffffffc085353ce0\n    x29: ffffffc085353ce0 x28: 0000000000000000 x27: ffffff8808ea8688\n    x26: ffffffc081715038 x25: 0000000000000000 x24: ffffff880100db00\n    x23: ffffff880100da80 x22: 0000000000000000 x21: 0000000000000000\n    x20: ffffff8805b14000 x19: ffffff880100da80 x18: 0000000000010450\n    x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\n    x14: 0000000000000003 x13: 0000000000000000 x12: ffffff880100dad0\n    x11: 0000000000000000 x10: ffffffc0832dcd08 x9 : ffffffc0812416d8\n    x8 : 00000000000001f4 x7 : ffffffc0830d2830 x6 : 0000000000000001\n    x5 : ffffffc082091000 x4 : ffffffc082091658 x3 : 0000000000000000\n    x2 : ffffffc7f9653000 x1 : 0000000000000000 x0 : ffffff8802d20000\n    Call trace:\n     crypto_finalize_request+0xa0/0x118\n     crypto_finalize_aead_request+0x18/0x30\n     zynqmp_handle_aes_req+0xcc/0x388\n     crypto_pump_work+0x168/0x2d8\n     kthread_worker_fn+0xfc/0x3a0\n     kthread+0x118/0x138\n     ret_from_fork+0x10/0x20\n    irq event stamp: 40\n    hardirqs last  enabled at (39): [\u003cffffffc0812416f8\u003e] _raw_spin_unlock_irqrestore+0x70/0xb0\n    hardirqs last disabled at (40): [\u003cffffffc08122d208\u003e] el1_dbg+0x28/0x90\n    softirqs last  enabled at (36): [\u003cffffffc080017dec\u003e] kernel_neon_begin+0x8c/0xf0\n    softirqs last disabled at (34): [\u003cffffffc080017dc0\u003e] kernel_neon_begin+0x60/0xf0\n    ---[ end trace 0000000000000000 ]---"
        },
        {
          "lang": "es",
          "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: xilinx - llamada a finalizar con bh deshabilitado Al llamar a crypto_finalize_request, BH debe estar deshabilitado para evitar que se active el siguiente seguimiento de llamadas: ------------[ cut aqu\u00ed ]------------ ADVERTENCIA: CPU: 2 PID: 74 en crypto/crypto_engine.c:58 crypto_finalize_request+0xa0/0x118 M\u00f3dulos vinculados en: cryptodev(O) CPU: 2 PID: 74 Comm : firmware:zynqmp Contaminado: GO 6.8.0-rc1-yocto-standard #323 Nombre del hardware: ZynqMP ZCU102 Rev1.0 (DT) pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc: crypto_finalize_request+0xa0/0x118 lr: crypto_finalize_request+0x104/0x118 sp: ffffffc085353ce0 x29: ffffffc085353ce0 x28: 00000000000000000 x27: ffffff8808ea8688 x26: 15038 x25: 0000000000000000 x24: ffffff880100db00 x23: ffffff880100da80 x22: 0000000000000000 x21: 0000000000000000 x20: ffffff8805b14000 x19: ffffff880100da80 x18: 0000000000010450 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000003 x13: 0000000000000000 x12: ffffff880100dad0 x11: 0000000000000000 x10: ffffffc0832dcd08 x9 : ffffffc0812416d8 x8 : 00000000000001f4 x7 : ffffffc0830d2830 x6 : 0000000000000001 x5 : ffffffc082091000 x4 : ffffffc082091658 x3 : 0000000000000000 x2 : ffffffc7f9653000 x1: 0000000000000000 x0: ffffff8802d20000 Rastreo de llamadas: crypto_finalize_request+0xa0/0x118 crypto_finalize_aead_request+0x18/0x30 zynqmp_handle_aes_req+0xcc/0x388 crypto_pump_work+0x 168/0x2d8 kthread_worker_fn+0xfc/0x3a0 kthread+0x118/0x138 ret_from_fork+0x10/0x20 sello de evento irq: 40 hardirqs habilitado por \u00faltima vez en (39): [] _raw_spin_unlock_irqrestore+0x70/0xb0 hardirqs habilitado por \u00faltima vez en (40): [] el1_dbg+0x28/0x90 softirqs habilitado por \u00faltima vez en (36): [] _comenzar +0x8c/0xf0 softirqs se deshabilit\u00f3 por \u00faltima vez en (34): [] kernel_neon_begin+0x60/0xf0 ---[ final de seguimiento 0000000000000000 ]---"
        }
      ],
      "id": "CVE-2024-26877",
      "lastModified": "2024-11-21T09:03:16.520",
      "published": "2024-04-17T11:15:09.820",
      "references": [
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/03e6d4e948432a61b35783323b6ab2be071d2619"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/23bc89fdce71124cd2126fc919c7076e7cb489cf"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/8a01335aedc50a66d04dd39203c89f4bc8042596"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/9db89b1fb85557892e6681724b367287de5f9f20"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/a71f66bd5f7b9b35a8aaa49e29565eca66299399"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/a853450bf4c752e664abab0b2fad395b7ad7701c"
        },
        {
          "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
          "url": "https://git.kernel.org/stable/c/dbf291d8ffffb70f48286176a15c6c54f0bb0743"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/03e6d4e948432a61b35783323b6ab2be071d2619"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/23bc89fdce71124cd2126fc919c7076e7cb489cf"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/8a01335aedc50a66d04dd39203c89f4bc8042596"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/9db89b1fb85557892e6681724b367287de5f9f20"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/a71f66bd5f7b9b35a8aaa49e29565eca66299399"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/a853450bf4c752e664abab0b2fad395b7ad7701c"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://git.kernel.org/stable/c/dbf291d8ffffb70f48286176a15c6c54f0bb0743"
        },
        {
          "source": "af854a3a-2127-422b-91ae-364da2661108",
          "url": "https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html"
        }
      ],
      "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "vulnStatus": "Awaiting Analysis"
    },
    "nvd": {
      "cve": {
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            "affectedData": [
              {
                "defaultStatus": "unaffected",
                "product": "Linux",
                "programFiles": [
                  "drivers/crypto/xilinx/zynqmp-aes-gcm.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
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                    "status": "affected",
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                    "versionType": "git"
                  },
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                    "status": "affected",
                    "version": "4d96f7d48131fefe30d7c1d1e2a23ef37164dbf5",
                    "versionType": "git"
                  }
                ]
              },
              {
                "defaultStatus": "affected",
                "product": "Linux",
                "programFiles": [
                  "drivers/crypto/xilinx/zynqmp-aes-gcm.c"
                ],
                "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                "vendor": "Linux",
                "versions": [
                  {
                    "status": "affected",
                    "version": "5.7"
                  },
                  {
                    "lessThan": "5.7",
                    "status": "unaffected",
                    "version": "0",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.10.*",
                    "status": "unaffected",
                    "version": "5.10.214",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "5.15.*",
                    "status": "unaffected",
                    "version": "5.15.153",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.1.*",
                    "status": "unaffected",
                    "version": "6.1.83",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.6.*",
                    "status": "unaffected",
                    "version": "6.6.23",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.7.*",
                    "status": "unaffected",
                    "version": "6.7.11",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "6.8.*",
                    "status": "unaffected",
                    "version": "6.8.2",
                    "versionType": "semver"
                  },
                  {
                    "lessThanOrEqual": "*",
                    "status": "unaffected",
                    "version": "6.9",
                    "versionType": "original_commit_for_fix"
                  }
                ]
              }
            ],
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
          },
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "product": "SIMATIC S7-1500 TM MFP - GNU/Linux subsystem",
                "vendor": "Siemens",
                "versions": [
                  {
                    "lessThan": "*",
                    "status": "affected",
                    "version": "0",
                    "versionType": "custom"
                  }
                ]
              }
            ],
            "source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e"
          }
        ],
        "configurations": [
          {
            "nodes": [
              {
                "cpeMatch": [
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "8CFC410C-9CA9-4D1C-BF75-DCE173F26777",
                    "versionEndExcluding": "5.10.214",
                    "versionStartIncluding": "5.7",
                    "vulnerable": true
                  },
                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "ACB69438-845D-4E3C-B114-3140611F9C0B",
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                    "matchCriteriaId": "121A07F6-F505-4C47-86BF-9BB6CC7B6C19",
                    "versionEndExcluding": "6.1.83",
                    "versionStartIncluding": "5.16",
                    "vulnerable": true
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                  {
                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                    "matchCriteriaId": "E00814DC-0BA7-431A-9926-80FEB4A96C68",
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                    "matchCriteriaId": "543A75FF-25B8-4046-A514-1EA8EDD87AB1",
                    "versionEndExcluding": "6.8.2",
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                "negate": false,
                "operator": "OR"
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          {
            "nodes": [
              {
                "cpeMatch": [
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                    "criteria": "cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*",
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: xilinx - call finalize with bh disabled\n\nWhen calling crypto_finalize_request, BH should be disabled to avoid\ntriggering the following calltrace:\n\n    ------------[ cut here ]------------\n    WARNING: CPU: 2 PID: 74 at crypto/crypto_engine.c:58 crypto_finalize_request+0xa0/0x118\n    Modules linked in: cryptodev(O)\n    CPU: 2 PID: 74 Comm: firmware:zynqmp Tainted: G           O       6.8.0-rc1-yocto-standard #323\n    Hardware name: ZynqMP ZCU102 Rev1.0 (DT)\n    pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n    pc : crypto_finalize_request+0xa0/0x118\n    lr : crypto_finalize_request+0x104/0x118\n    sp : ffffffc085353ce0\n    x29: ffffffc085353ce0 x28: 0000000000000000 x27: ffffff8808ea8688\n    x26: ffffffc081715038 x25: 0000000000000000 x24: ffffff880100db00\n    x23: ffffff880100da80 x22: 0000000000000000 x21: 0000000000000000\n    x20: ffffff8805b14000 x19: ffffff880100da80 x18: 0000000000010450\n    x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\n    x14: 0000000000000003 x13: 0000000000000000 x12: ffffff880100dad0\n    x11: 0000000000000000 x10: ffffffc0832dcd08 x9 : ffffffc0812416d8\n    x8 : 00000000000001f4 x7 : ffffffc0830d2830 x6 : 0000000000000001\n    x5 : ffffffc082091000 x4 : ffffffc082091658 x3 : 0000000000000000\n    x2 : ffffffc7f9653000 x1 : 0000000000000000 x0 : ffffff8802d20000\n    Call trace:\n     crypto_finalize_request+0xa0/0x118\n     crypto_finalize_aead_request+0x18/0x30\n     zynqmp_handle_aes_req+0xcc/0x388\n     crypto_pump_work+0x168/0x2d8\n     kthread_worker_fn+0xfc/0x3a0\n     kthread+0x118/0x138\n     ret_from_fork+0x10/0x20\n    irq event stamp: 40\n    hardirqs last  enabled at (39): [\u003cffffffc0812416f8\u003e] _raw_spin_unlock_irqrestore+0x70/0xb0\n    hardirqs last disabled at (40): [\u003cffffffc08122d208\u003e] el1_dbg+0x28/0x90\n    softirqs last  enabled at (36): [\u003cffffffc080017dec\u003e] kernel_neon_begin+0x8c/0xf0\n    softirqs last disabled at (34): [\u003cffffffc080017dc0\u003e] kernel_neon_begin+0x60/0xf0\n    ---[ end trace 0000000000000000 ]---"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: crypto: xilinx - llamada a finalizar con bh deshabilitado Al llamar a crypto_finalize_request, BH debe estar deshabilitado para evitar que se active el siguiente seguimiento de llamadas: ------------[ cut aqu\u00ed ]------------ ADVERTENCIA: CPU: 2 PID: 74 en crypto/crypto_engine.c:58 crypto_finalize_request+0xa0/0x118 M\u00f3dulos vinculados en: cryptodev(O) CPU: 2 PID: 74 Comm : firmware:zynqmp Contaminado: GO 6.8.0-rc1-yocto-standard #323 Nombre del hardware: ZynqMP ZCU102 Rev1.0 (DT) pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc: crypto_finalize_request+0xa0/0x118 lr: crypto_finalize_request+0x104/0x118 sp: ffffffc085353ce0 x29: ffffffc085353ce0 x28: 00000000000000000 x27: ffffff8808ea8688 x26: 15038 x25: 0000000000000000 x24: ffffff880100db00 x23: ffffff880100da80 x22: 0000000000000000 x21: 0000000000000000 x20: ffffff8805b14000 x19: ffffff880100da80 x18: 0000000000010450 x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000 x14: 0000000000000003 x13: 0000000000000000 x12: ffffff880100dad0 x11: 0000000000000000 x10: ffffffc0832dcd08 x9 : ffffffc0812416d8 x8 : 00000000000001f4 x7 : ffffffc0830d2830 x6 : 0000000000000001 x5 : ffffffc082091000 x4 : ffffffc082091658 x3 : 0000000000000000 x2 : ffffffc7f9653000 x1: 0000000000000000 x0: ffffff8802d20000 Rastreo de llamadas: crypto_finalize_request+0xa0/0x118 crypto_finalize_aead_request+0x18/0x30 zynqmp_handle_aes_req+0xcc/0x388 crypto_pump_work+0x 168/0x2d8 kthread_worker_fn+0xfc/0x3a0 kthread+0x118/0x138 ret_from_fork+0x10/0x20 sello de evento irq: 40 hardirqs habilitado por \u00faltima vez en (39): [] _raw_spin_unlock_irqrestore+0x70/0xb0 hardirqs habilitado por \u00faltima vez en (40): [] el1_dbg+0x28/0x90 softirqs habilitado por \u00faltima vez en (36): [] _comenzar +0x8c/0xf0 softirqs se deshabilit\u00f3 por \u00faltima vez en (34): [] kernel_neon_begin+0x60/0xf0 ---[ final de seguimiento 0000000000000000 ]---"
          }
        ],
        "id": "CVE-2024-26877",
        "lastModified": "2026-08-04T11:17:16.443",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "HIGH",
                "baseScore": 9.8,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 5.9,
              "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
              "type": "Secondary"
            },
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2024-26877",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "no"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-09-10T15:48:28.996233Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2024-04-17T11:15:09.820",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/03e6d4e948432a61b35783323b6ab2be071d2619"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
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              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: xilinx - call finalize with bh disabled\n\nWhen calling crypto_finalize_request, BH should be disabled to avoid\ntriggering the following calltrace:\n\n    ------------[ cut here ]------------\n    WARNING: CPU: 2 PID: 74 at crypto/crypto_engine.c:58 crypto_finalize_request+0xa0/0x118\n    Modules linked in: cryptodev(O)\n    CPU: 2 PID: 74 Comm: firmware:zynqmp Tainted: G           O       6.8.0-rc1-yocto-standard #323\n    Hardware name: ZynqMP ZCU102 Rev1.0 (DT)\n    pstate: 40000005 (nZcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n    pc : crypto_finalize_request+0xa0/0x118\n    lr : crypto_finalize_request+0x104/0x118\n    sp : ffffffc085353ce0\n    x29: ffffffc085353ce0 x28: 0000000000000000 x27: ffffff8808ea8688\n    x26: ffffffc081715038 x25: 0000000000000000 x24: ffffff880100db00\n    x23: ffffff880100da80 x22: 0000000000000000 x21: 0000000000000000\n    x20: ffffff8805b14000 x19: ffffff880100da80 x18: 0000000000010450\n    x17: 0000000000000000 x16: 0000000000000000 x15: 0000000000000000\n    x14: 0000000000000003 x13: 0000000000000000 x12: ffffff880100dad0\n    x11: 0000000000000000 x10: ffffffc0832dcd08 x9 : ffffffc0812416d8\n    x8 : 00000000000001f4 x7 : ffffffc0830d2830 x6 : 0000000000000001\n    x5 : ffffffc082091000 x4 : ffffffc082091658 x3 : 0000000000000000\n    x2 : ffffffc7f9653000 x1 : 0000000000000000 x0 : ffffff8802d20000\n    Call trace:\n     crypto_finalize_request+0xa0/0x118\n     crypto_finalize_aead_request+0x18/0x30\n     zynqmp_handle_aes_req+0xcc/0x388\n     crypto_pump_work+0x168/0x2d8\n     kthread_worker_fn+0xfc/0x3a0\n     kthread+0x118/0x138\n     ret_from_fork+0x10/0x20\n    irq event stamp: 40\n    hardirqs last  enabled at (39): [\u003cffffffc0812416f8\u003e] _raw_spin_unlock_irqrestore+0x70/0xb0\n    hardirqs last disabled at (40): [\u003cffffffc08122d208\u003e] el1_dbg+0x28/0x90\n    softirqs last  enabled at (36): [\u003cffffffc080017dec\u003e] kernel_neon_begin+0x8c/0xf0\n    softirqs last disabled at (34): [\u003cffffffc080017dc0\u003e] kernel_neon_begin+0x60/0xf0\n    ---[ end trace 0000000000000000 ]---"
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                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                "version": "3.1"
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                {
                  "lang": "en",
                  "value": "AV:N - The impactful instance of this bug is driven by remote traffic: inbound ESP packets to a ZynqMP IPsec endpoint reach `esp_input()` \u2192 async `gcm(aes)` on this engine \u2192 `esp_input_done()` running in the wrong context, which is exactly the \"iperf over ipsec\" scenario that motivated the `lockdep_assert_in_softirq()` check. Other remote consumers of `gcm(aes)` on the same driver (kTLS, ksmbd/SMB3 encryption) reach the same finalize path.\nAC:L - The BH-enabled completion happens on 100% of requests with no preconditions, and the attacker supplies both sides of the resulting race by simply sustaining packet flow \u2014 the racing NET_RX softirq is generated by the attacker\u0027s own traffic, and the preemptible/migratable kthread widens the window arbitrarily.\nPR:N - A remote peer needs no account or credential on the target; sending ESP packets that match an existing inbound SA queues the asynchronous decrypt, and the completion callback runs in the bad context regardless of whether the ICV ultimately validates.\nUI:N - No victim action is required \u2014 the crypto request is submitted and finalized automatically by the network stack as packets arrive.\nS:U - The context violation, the corrupted lists, the deadlock, and the crash are all confined to the kernel\u0027s own security authority; no hypervisor, IOMMU, or sandbox boundary is crossed.\nC:H - `xfrm_input()` calls `gro_cells_receive()` unguarded, whose unlocked per-CPU `napi_skbs` list can be corrupted by a concurrent same-CPU `gro_cell_poll()`, yielding use-after-free reads of freed `sk_buff` slab memory that an attacker who reclaims the object can read back; the accompanying WARN also dumps full register and stack state to dmesg.\nI:H - The same unsynchronized `__skb_queue_tail`/`__skb_dequeue` interleaving leaves dangling `next`/`prev` pointers and lets one skb be dequeued and freed twice, giving a double-free/UAF write primitive over reclaimed heap objects; per-CPU `__this_cpu_inc` MIB state and the xfrm replay window are likewise updated without the atomicity they assume.\nA:H - Taking `x-\u003elock` with plain `spin_lock()` from a BH-enabled kthread while softirq paths take it with `spin_lock_bh()` produces same-CPU spinlock recursion \u2014 the exact deadlock/hard lockup the assert was added to catch \u2014 plus a `WARN_ON_ONCE` splat that panics outright on `panic_on_warn` kernels, and skb list corruption that oopses the machine."
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}



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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.