CVE-2022-49532 (GCVE-0-2022-49532)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:13 – Updated: 2026-05-11 19:01
VLAI
Title
drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes
Summary
In the Linux kernel, the following vulnerability has been resolved: drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes drm_cvt_mode may return NULL and we should check it. This bug is found by syzkaller: FAULT_INJECTION stacktrace: [ 168.567394] FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 [ 168.567403] CPU: 1 PID: 6425 Comm: syz Kdump: loaded Not tainted 4.19.90-vhulk2201.1.0.h1035.kasan.eulerosv2r10.aarch64 #1 [ 168.567406] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 [ 168.567408] Call trace: [ 168.567414] dump_backtrace+0x0/0x310 [ 168.567418] show_stack+0x28/0x38 [ 168.567423] dump_stack+0xec/0x15c [ 168.567427] should_fail+0x3ac/0x3d0 [ 168.567437] __should_failslab+0xb8/0x120 [ 168.567441] should_failslab+0x28/0xc0 [ 168.567445] kmem_cache_alloc_trace+0x50/0x640 [ 168.567454] drm_mode_create+0x40/0x90 [ 168.567458] drm_cvt_mode+0x48/0xc78 [ 168.567477] virtio_gpu_conn_get_modes+0xa8/0x140 [virtio_gpu] [ 168.567485] drm_helper_probe_single_connector_modes+0x3a4/0xd80 [ 168.567492] drm_mode_getconnector+0x2e0/0xa70 [ 168.567496] drm_ioctl_kernel+0x11c/0x1d8 [ 168.567514] drm_ioctl+0x558/0x6d0 [ 168.567522] do_vfs_ioctl+0x160/0xf30 [ 168.567525] ksys_ioctl+0x98/0xd8 [ 168.567530] __arm64_sys_ioctl+0x50/0xc8 [ 168.567536] el0_svc_common+0xc8/0x320 [ 168.567540] el0_svc_handler+0xf8/0x160 [ 168.567544] el0_svc+0x10/0x218 KASAN stacktrace: [ 168.567561] BUG: KASAN: null-ptr-deref in virtio_gpu_conn_get_modes+0xb4/0x140 [virtio_gpu] [ 168.567565] Read of size 4 at addr 0000000000000054 by task syz/6425 [ 168.567566] [ 168.567571] CPU: 1 PID: 6425 Comm: syz Kdump: loaded Not tainted 4.19.90-vhulk2201.1.0.h1035.kasan.eulerosv2r10.aarch64 #1 [ 168.567573] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 [ 168.567575] Call trace: [ 168.567578] dump_backtrace+0x0/0x310 [ 168.567582] show_stack+0x28/0x38 [ 168.567586] dump_stack+0xec/0x15c [ 168.567591] kasan_report+0x244/0x2f0 [ 168.567594] __asan_load4+0x58/0xb0 [ 168.567607] virtio_gpu_conn_get_modes+0xb4/0x140 [virtio_gpu] [ 168.567612] drm_helper_probe_single_connector_modes+0x3a4/0xd80 [ 168.567617] drm_mode_getconnector+0x2e0/0xa70 [ 168.567621] drm_ioctl_kernel+0x11c/0x1d8 [ 168.567624] drm_ioctl+0x558/0x6d0 [ 168.567628] do_vfs_ioctl+0x160/0xf30 [ 168.567632] ksys_ioctl+0x98/0xd8 [ 168.567636] __arm64_sys_ioctl+0x50/0xc8 [ 168.567641] el0_svc_common+0xc8/0x320 [ 168.567645] el0_svc_handler+0xf8/0x160 [ 168.567649] el0_svc+0x10/0x218
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-01 19:37 UTC
CWE
  • CWE-476 - NULL Pointer Dereference
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: dc5698e80cf724770283e10414054662bdf6ccfa , < e0828456578cc8ba0a69147f7ae3428392eec287 (git)
Affected: dc5698e80cf724770283e10414054662bdf6ccfa , < 848dd072744ea662ab3097e3c8282bee552df218 (git)
Affected: dc5698e80cf724770283e10414054662bdf6ccfa , < edafcad84c4134ebec4bc24b29ca4497a1184eea (git)
Affected: dc5698e80cf724770283e10414054662bdf6ccfa , < f85cb059fad03a3b33a50023be91e944bb065ae8 (git)
Affected: dc5698e80cf724770283e10414054662bdf6ccfa , < fadc626cae99aaa1325094edc6a9e2b883f3e562 (git)
Affected: dc5698e80cf724770283e10414054662bdf6ccfa , < 32e10aabc287f09a148ff759bb9ce70b01b0012c (git)
Affected: dc5698e80cf724770283e10414054662bdf6ccfa , < c51d00472fa54b9b05c17789ed665c17adf3a25d (git)
Affected: dc5698e80cf724770283e10414054662bdf6ccfa , < 0f8bc147a963686b7351aa35d1701124ffacac08 (git)
Affected: dc5698e80cf724770283e10414054662bdf6ccfa , < 194d250cdc4a40ccbd179afd522a9e9846957402 (git)
guessed Create a notification for this product.
Linux Linux Affected: 4.2
Unaffected: 0 , < 4.2 (semver)
Unaffected: 4.9.318 , ≤ 4.9.* (semver)
Unaffected: 4.14.283 , ≤ 4.14.* (semver)
Unaffected: 4.19.247 , ≤ 4.19.* (semver)
Unaffected: 5.4.198 , ≤ 5.4.* (semver)
Unaffected: 5.10.121 , ≤ 5.10.* (semver)
Unaffected: 5.15.46 , ≤ 5.15.* (semver)
Unaffected: 5.17.14 , ≤ 5.17.* (semver)
Unaffected: 5.18.3 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website

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          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes\n\ndrm_cvt_mode may return NULL and we should check it.\n\nThis bug is found by syzkaller:\n\nFAULT_INJECTION stacktrace:\n[  168.567394] FAULT_INJECTION: forcing a failure.\nname failslab, interval 1, probability 0, space 0, times 1\n[  168.567403] CPU: 1 PID: 6425 Comm: syz Kdump: loaded Not tainted 4.19.90-vhulk2201.1.0.h1035.kasan.eulerosv2r10.aarch64 #1\n[  168.567406] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015\n[  168.567408] Call trace:\n[  168.567414]  dump_backtrace+0x0/0x310\n[  168.567418]  show_stack+0x28/0x38\n[  168.567423]  dump_stack+0xec/0x15c\n[  168.567427]  should_fail+0x3ac/0x3d0\n[  168.567437]  __should_failslab+0xb8/0x120\n[  168.567441]  should_failslab+0x28/0xc0\n[  168.567445]  kmem_cache_alloc_trace+0x50/0x640\n[  168.567454]  drm_mode_create+0x40/0x90\n[  168.567458]  drm_cvt_mode+0x48/0xc78\n[  168.567477]  virtio_gpu_conn_get_modes+0xa8/0x140 [virtio_gpu]\n[  168.567485]  drm_helper_probe_single_connector_modes+0x3a4/0xd80\n[  168.567492]  drm_mode_getconnector+0x2e0/0xa70\n[  168.567496]  drm_ioctl_kernel+0x11c/0x1d8\n[  168.567514]  drm_ioctl+0x558/0x6d0\n[  168.567522]  do_vfs_ioctl+0x160/0xf30\n[  168.567525]  ksys_ioctl+0x98/0xd8\n[  168.567530]  __arm64_sys_ioctl+0x50/0xc8\n[  168.567536]  el0_svc_common+0xc8/0x320\n[  168.567540]  el0_svc_handler+0xf8/0x160\n[  168.567544]  el0_svc+0x10/0x218\n\nKASAN stacktrace:\n[  168.567561] BUG: KASAN: null-ptr-deref in virtio_gpu_conn_get_modes+0xb4/0x140 [virtio_gpu]\n[  168.567565] Read of size 4 at addr 0000000000000054 by task syz/6425\n[  168.567566]\n[  168.567571] CPU: 1 PID: 6425 Comm: syz Kdump: loaded Not tainted 4.19.90-vhulk2201.1.0.h1035.kasan.eulerosv2r10.aarch64 #1\n[  168.567573] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015\n[  168.567575] Call trace:\n[  168.567578]  dump_backtrace+0x0/0x310\n[  168.567582]  show_stack+0x28/0x38\n[  168.567586]  dump_stack+0xec/0x15c\n[  168.567591]  kasan_report+0x244/0x2f0\n[  168.567594]  __asan_load4+0x58/0xb0\n[  168.567607]  virtio_gpu_conn_get_modes+0xb4/0x140 [virtio_gpu]\n[  168.567612]  drm_helper_probe_single_connector_modes+0x3a4/0xd80\n[  168.567617]  drm_mode_getconnector+0x2e0/0xa70\n[  168.567621]  drm_ioctl_kernel+0x11c/0x1d8\n[  168.567624]  drm_ioctl+0x558/0x6d0\n[  168.567628]  do_vfs_ioctl+0x160/0xf30\n[  168.567632]  ksys_ioctl+0x98/0xd8\n[  168.567636]  __arm64_sys_ioctl+0x50/0xc8\n[  168.567641]  el0_svc_common+0xc8/0x320\n[  168.567645]  el0_svc_handler+0xf8/0x160\n[  168.567649]  el0_svc+0x10/0x218"
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        "dateUpdated": "2026-05-11T19:01:45.415Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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          "url": "https://git.kernel.org/stable/c/e0828456578cc8ba0a69147f7ae3428392eec287"
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          "url": "https://git.kernel.org/stable/c/848dd072744ea662ab3097e3c8282bee552df218"
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          "url": "https://git.kernel.org/stable/c/edafcad84c4134ebec4bc24b29ca4497a1184eea"
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        {
          "url": "https://git.kernel.org/stable/c/194d250cdc4a40ccbd179afd522a9e9846957402"
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      "title": "drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes",
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        "descriptions": [
          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes\n\ndrm_cvt_mode may return NULL and we should check it.\n\nThis bug is found by syzkaller:\n\nFAULT_INJECTION stacktrace:\n[  168.567394] FAULT_INJECTION: forcing a failure.\nname failslab, interval 1, probability 0, space 0, times 1\n[  168.567403] CPU: 1 PID: 6425 Comm: syz Kdump: loaded Not tainted 4.19.90-vhulk2201.1.0.h1035.kasan.eulerosv2r10.aarch64 #1\n[  168.567406] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015\n[  168.567408] Call trace:\n[  168.567414]  dump_backtrace+0x0/0x310\n[  168.567418]  show_stack+0x28/0x38\n[  168.567423]  dump_stack+0xec/0x15c\n[  168.567427]  should_fail+0x3ac/0x3d0\n[  168.567437]  __should_failslab+0xb8/0x120\n[  168.567441]  should_failslab+0x28/0xc0\n[  168.567445]  kmem_cache_alloc_trace+0x50/0x640\n[  168.567454]  drm_mode_create+0x40/0x90\n[  168.567458]  drm_cvt_mode+0x48/0xc78\n[  168.567477]  virtio_gpu_conn_get_modes+0xa8/0x140 [virtio_gpu]\n[  168.567485]  drm_helper_probe_single_connector_modes+0x3a4/0xd80\n[  168.567492]  drm_mode_getconnector+0x2e0/0xa70\n[  168.567496]  drm_ioctl_kernel+0x11c/0x1d8\n[  168.567514]  drm_ioctl+0x558/0x6d0\n[  168.567522]  do_vfs_ioctl+0x160/0xf30\n[  168.567525]  ksys_ioctl+0x98/0xd8\n[  168.567530]  __arm64_sys_ioctl+0x50/0xc8\n[  168.567536]  el0_svc_common+0xc8/0x320\n[  168.567540]  el0_svc_handler+0xf8/0x160\n[  168.567544]  el0_svc+0x10/0x218\n\nKASAN stacktrace:\n[  168.567561] BUG: KASAN: null-ptr-deref in virtio_gpu_conn_get_modes+0xb4/0x140 [virtio_gpu]\n[  168.567565] Read of size 4 at addr 0000000000000054 by task syz/6425\n[  168.567566]\n[  168.567571] CPU: 1 PID: 6425 Comm: syz Kdump: loaded Not tainted 4.19.90-vhulk2201.1.0.h1035.kasan.eulerosv2r10.aarch64 #1\n[  168.567573] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015\n[  168.567575] Call trace:\n[  168.567578]  dump_backtrace+0x0/0x310\n[  168.567582]  show_stack+0x28/0x38\n[  168.567586]  dump_stack+0xec/0x15c\n[  168.567591]  kasan_report+0x244/0x2f0\n[  168.567594]  __asan_load4+0x58/0xb0\n[  168.567607]  virtio_gpu_conn_get_modes+0xb4/0x140 [virtio_gpu]\n[  168.567612]  drm_helper_probe_single_connector_modes+0x3a4/0xd80\n[  168.567617]  drm_mode_getconnector+0x2e0/0xa70\n[  168.567621]  drm_ioctl_kernel+0x11c/0x1d8\n[  168.567624]  drm_ioctl+0x558/0x6d0\n[  168.567628]  do_vfs_ioctl+0x160/0xf30\n[  168.567632]  ksys_ioctl+0x98/0xd8\n[  168.567636]  __arm64_sys_ioctl+0x50/0xc8\n[  168.567641]  el0_svc_common+0xc8/0x320\n[  168.567645]  el0_svc_handler+0xf8/0x160\n[  168.567649]  el0_svc+0x10/0x218"
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: drm/virtio: se corrige la desreferencia de puntero NULL en virtio_gpu_conn_get_modes. drm_cvt_mode puede devolver NULL y deber\u00edamos comprobarlo. Este error lo encontr\u00f3 syzkaller: FAULT_INJECTION stacktrace: [ 168.567394] FAULT_INJECTION: forcing a failure. name failslab, interval 1, probability 0, space 0, times 1 [ 168.567403] CPU: 1 PID: 6425 Comm: syz Kdump: loaded Not tainted 4.19.90-vhulk2201.1.0.h1035.kasan.eulerosv2r10.aarch64 #1 [ 168.567406] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 [ 168.567408] Call trace: [ 168.567414] dump_backtrace+0x0/0x310 [ 168.567418] show_stack+0x28/0x38 [ 168.567423] dump_stack+0xec/0x15c [ 168.567427] should_fail+0x3ac/0x3d0 [ 168.567437] __should_failslab+0xb8/0x120 [ 168.567441] should_failslab+0x28/0xc0 [ 168.567445] kmem_cache_alloc_trace+0x50/0x640 [ 168.567454] drm_mode_create+0x40/0x90 [ 168.567458] drm_cvt_mode+0x48/0xc78 [ 168.567477] virtio_gpu_conn_get_modes+0xa8/0x140 [virtio_gpu] [ 168.567485] drm_helper_probe_single_connector_modes+0x3a4/0xd80 [ 168.567492] drm_mode_getconnector+0x2e0/0xa70 [ 168.567496] drm_ioctl_kernel+0x11c/0x1d8 [ 168.567514] drm_ioctl+0x558/0x6d0 [ 168.567522] do_vfs_ioctl+0x160/0xf30 [ 168.567525] ksys_ioctl+0x98/0xd8 [ 168.567530] __arm64_sys_ioctl+0x50/0xc8 [ 168.567536] el0_svc_common+0xc8/0x320 [ 168.567540] el0_svc_handler+0xf8/0x160 [ 168.567544] el0_svc+0x10/0x218 KASAN stacktrace: [ 168.567561] BUG: KASAN: null-ptr-deref in virtio_gpu_conn_get_modes+0xb4/0x140 [virtio_gpu] [ 168.567565] Read of size 4 at addr 0000000000000054 by task syz/6425 [ 168.567566] [ 168.567571] CPU: 1 PID: 6425 Comm: syz Kdump: loaded Not tainted 4.19.90-vhulk2201.1.0.h1035.kasan.eulerosv2r10.aarch64 #1 [ 168.567573] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015 [ 168.567575] Call trace: [ 168.567578] dump_backtrace+0x0/0x310 [ 168.567582] show_stack+0x28/0x38 [ 168.567586] dump_stack+0xec/0x15c [ 168.567591] kasan_report+0x244/0x2f0 [ 168.567594] __asan_load4+0x58/0xb0 [ 168.567607] virtio_gpu_conn_get_modes+0xb4/0x140 [virtio_gpu] [ 168.567612] drm_helper_probe_single_connector_modes+0x3a4/0xd80 [ 168.567617] drm_mode_getconnector+0x2e0/0xa70 [ 168.567621] drm_ioctl_kernel+0x11c/0x1d8 [ 168.567624] drm_ioctl+0x558/0x6d0 [ 168.567628] do_vfs_ioctl+0x160/0xf30 [ 168.567632] ksys_ioctl+0x98/0xd8 [ 168.567636] __arm64_sys_ioctl+0x50/0xc8 [ 168.567641] el0_svc_common+0xc8/0x320 [ 168.567645] el0_svc_handler+0xf8/0x160 [ 168.567649] el0_svc+0x10/0x218 "
          }
        ],
        "id": "CVE-2022-49532",
        "lastModified": "2026-06-17T05:18:21.857",
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                  "status": "affected",
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                  "versionType": "git"
                },
                {
                  "lessThan": "0f8bc147a963686b7351aa35d1701124ffacac08",
                  "status": "affected",
                  "version": "dc5698e80cf724770283e10414054662bdf6ccfa",
                  "versionType": "git"
                },
                {
                  "lessThan": "194d250cdc4a40ccbd179afd522a9e9846957402",
                  "status": "affected",
                  "version": "dc5698e80cf724770283e10414054662bdf6ccfa",
                  "versionType": "git"
                }
              ]
            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "drivers/gpu/drm/virtio/virtgpu_display.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "4.2"
                },
                {
                  "lessThan": "4.2",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.9.*",
                  "status": "unaffected",
                  "version": "4.9.318",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.14.*",
                  "status": "unaffected",
                  "version": "4.14.283",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "4.19.*",
                  "status": "unaffected",
                  "version": "4.19.247",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.4.*",
                  "status": "unaffected",
                  "version": "5.4.198",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.10.*",
                  "status": "unaffected",
                  "version": "5.10.121",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.15.*",
                  "status": "unaffected",
                  "version": "5.15.46",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.17.*",
                  "status": "unaffected",
                  "version": "5.17.14",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "5.18.*",
                  "status": "unaffected",
                  "version": "5.18.3",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "5.19",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.9.318",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.14.283",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "4.19.247",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.4.198",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.10.121",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.15.46",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.17.14",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.18.3",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    },
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                      "versionEndExcluding": "5.19",
                      "versionStartIncluding": "4.2",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
                }
              ]
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes\n\ndrm_cvt_mode may return NULL and we should check it.\n\nThis bug is found by syzkaller:\n\nFAULT_INJECTION stacktrace:\n[  168.567394] FAULT_INJECTION: forcing a failure.\nname failslab, interval 1, probability 0, space 0, times 1\n[  168.567403] CPU: 1 PID: 6425 Comm: syz Kdump: loaded Not tainted 4.19.90-vhulk2201.1.0.h1035.kasan.eulerosv2r10.aarch64 #1\n[  168.567406] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015\n[  168.567408] Call trace:\n[  168.567414]  dump_backtrace+0x0/0x310\n[  168.567418]  show_stack+0x28/0x38\n[  168.567423]  dump_stack+0xec/0x15c\n[  168.567427]  should_fail+0x3ac/0x3d0\n[  168.567437]  __should_failslab+0xb8/0x120\n[  168.567441]  should_failslab+0x28/0xc0\n[  168.567445]  kmem_cache_alloc_trace+0x50/0x640\n[  168.567454]  drm_mode_create+0x40/0x90\n[  168.567458]  drm_cvt_mode+0x48/0xc78\n[  168.567477]  virtio_gpu_conn_get_modes+0xa8/0x140 [virtio_gpu]\n[  168.567485]  drm_helper_probe_single_connector_modes+0x3a4/0xd80\n[  168.567492]  drm_mode_getconnector+0x2e0/0xa70\n[  168.567496]  drm_ioctl_kernel+0x11c/0x1d8\n[  168.567514]  drm_ioctl+0x558/0x6d0\n[  168.567522]  do_vfs_ioctl+0x160/0xf30\n[  168.567525]  ksys_ioctl+0x98/0xd8\n[  168.567530]  __arm64_sys_ioctl+0x50/0xc8\n[  168.567536]  el0_svc_common+0xc8/0x320\n[  168.567540]  el0_svc_handler+0xf8/0x160\n[  168.567544]  el0_svc+0x10/0x218\n\nKASAN stacktrace:\n[  168.567561] BUG: KASAN: null-ptr-deref in virtio_gpu_conn_get_modes+0xb4/0x140 [virtio_gpu]\n[  168.567565] Read of size 4 at addr 0000000000000054 by task syz/6425\n[  168.567566]\n[  168.567571] CPU: 1 PID: 6425 Comm: syz Kdump: loaded Not tainted 4.19.90-vhulk2201.1.0.h1035.kasan.eulerosv2r10.aarch64 #1\n[  168.567573] Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015\n[  168.567575] Call trace:\n[  168.567578]  dump_backtrace+0x0/0x310\n[  168.567582]  show_stack+0x28/0x38\n[  168.567586]  dump_stack+0xec/0x15c\n[  168.567591]  kasan_report+0x244/0x2f0\n[  168.567594]  __asan_load4+0x58/0xb0\n[  168.567607]  virtio_gpu_conn_get_modes+0xb4/0x140 [virtio_gpu]\n[  168.567612]  drm_helper_probe_single_connector_modes+0x3a4/0xd80\n[  168.567617]  drm_mode_getconnector+0x2e0/0xa70\n[  168.567621]  drm_ioctl_kernel+0x11c/0x1d8\n[  168.567624]  drm_ioctl+0x558/0x6d0\n[  168.567628]  do_vfs_ioctl+0x160/0xf30\n[  168.567632]  ksys_ioctl+0x98/0xd8\n[  168.567636]  __arm64_sys_ioctl+0x50/0xc8\n[  168.567641]  el0_svc_common+0xc8/0x320\n[  168.567645]  el0_svc_handler+0xf8/0x160\n[  168.567649]  el0_svc+0x10/0x218"
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-05-11T19:01:45.415Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
            {
              "url": "https://git.kernel.org/stable/c/e0828456578cc8ba0a69147f7ae3428392eec287"
            },
            {
              "url": "https://git.kernel.org/stable/c/848dd072744ea662ab3097e3c8282bee552df218"
            },
            {
              "url": "https://git.kernel.org/stable/c/edafcad84c4134ebec4bc24b29ca4497a1184eea"
            },
            {
              "url": "https://git.kernel.org/stable/c/f85cb059fad03a3b33a50023be91e944bb065ae8"
            },
            {
              "url": "https://git.kernel.org/stable/c/fadc626cae99aaa1325094edc6a9e2b883f3e562"
            },
            {
              "url": "https://git.kernel.org/stable/c/32e10aabc287f09a148ff759bb9ce70b01b0012c"
            },
            {
              "url": "https://git.kernel.org/stable/c/c51d00472fa54b9b05c17789ed665c17adf3a25d"
            },
            {
              "url": "https://git.kernel.org/stable/c/0f8bc147a963686b7351aa35d1701124ffacac08"
            },
            {
              "url": "https://git.kernel.org/stable/c/194d250cdc4a40ccbd179afd522a9e9846957402"
            }
          ],
          "title": "drm/virtio: fix NULL pointer dereference in virtio_gpu_conn_get_modes",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2022-49532",
        "datePublished": "2025-02-26T02:13:52.013Z",
        "dateReserved": "2025-02-26T02:08:31.589Z",
        "dateUpdated": "2026-05-11T19:01:45.415Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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