cve-2021-47338
Vulnerability from cvelistv5
Published
2024-05-21 14:35
Modified
2024-12-19 07:40
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: fbmem: Do not delete the mode that is still in use The execution of fb_delete_videomode() is not based on the result of the previous fbcon_mode_deleted(). As a result, the mode is directly deleted, regardless of whether it is still in use, which may cause UAF. ================================================================== BUG: KASAN: use-after-free in fb_mode_is_equal+0x36e/0x5e0 \ drivers/video/fbdev/core/modedb.c:924 Read of size 4 at addr ffff88807e0ddb1c by task syz-executor.0/18962 CPU: 2 PID: 18962 Comm: syz-executor.0 Not tainted 5.10.45-rc1+ #3 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ... Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x137/0x1be lib/dump_stack.c:118 print_address_description+0x6c/0x640 mm/kasan/report.c:385 __kasan_report mm/kasan/report.c:545 [inline] kasan_report+0x13d/0x1e0 mm/kasan/report.c:562 fb_mode_is_equal+0x36e/0x5e0 drivers/video/fbdev/core/modedb.c:924 fbcon_mode_deleted+0x16a/0x220 drivers/video/fbdev/core/fbcon.c:2746 fb_set_var+0x1e1/0xdb0 drivers/video/fbdev/core/fbmem.c:975 do_fb_ioctl+0x4d9/0x6e0 drivers/video/fbdev/core/fbmem.c:1108 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Freed by task 18960: kasan_save_stack mm/kasan/common.c:48 [inline] kasan_set_track+0x3d/0x70 mm/kasan/common.c:56 kasan_set_free_info+0x17/0x30 mm/kasan/generic.c:355 __kasan_slab_free+0x108/0x140 mm/kasan/common.c:422 slab_free_hook mm/slub.c:1541 [inline] slab_free_freelist_hook+0xd6/0x1a0 mm/slub.c:1574 slab_free mm/slub.c:3139 [inline] kfree+0xca/0x3d0 mm/slub.c:4121 fb_delete_videomode+0x56a/0x820 drivers/video/fbdev/core/modedb.c:1104 fb_set_var+0x1f3/0xdb0 drivers/video/fbdev/core/fbmem.c:978 do_fb_ioctl+0x4d9/0x6e0 drivers/video/fbdev/core/fbmem.c:1108 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/087bff9acd2ec6db3f61aceb3224bde90fe0f7f8Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0af778269a522c988ef0b4188556aba97fb420ccPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/359311b85ebec7c07c3a08ae2f3def946cad33faPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/d6e76469157d8f240e5dec6f8411aa8d306b1126Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f193509afc7ff37a46862610c93b896044d5b693Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/087bff9acd2ec6db3f61aceb3224bde90fe0f7f8Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/0af778269a522c988ef0b4188556aba97fb420ccPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/359311b85ebec7c07c3a08ae2f3def946cad33faPatch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/d6e76469157d8f240e5dec6f8411aa8d306b1126Patch
af854a3a-2127-422b-91ae-364da2661108https://git.kernel.org/stable/c/f193509afc7ff37a46862610c93b896044d5b693Patch
Impacted products
Vendor Product Version
Linux Linux Version: 13ff178ccd6d3b8074c542a911300b79c4eec255
Version: 13ff178ccd6d3b8074c542a911300b79c4eec255
Version: 13ff178ccd6d3b8074c542a911300b79c4eec255
Version: 13ff178ccd6d3b8074c542a911300b79c4eec255
Version: 13ff178ccd6d3b8074c542a911300b79c4eec255
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   Linux Linux Version: 5.3
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As a result, the mode is directly deleted,\\nregardless of whether it is still in use, which may cause UAF.\\n\\n==================================================================\\nBUG: KASAN: use-after-free in fb_mode_is_equal+0x36e/0x5e0 \\\\\\ndrivers/video/fbdev/core/modedb.c:924\\nRead of size 4 at addr ffff88807e0ddb1c by task syz-executor.0/18962\\n\\nCPU: 2 PID: 18962 Comm: syz-executor.0 Not tainted 5.10.45-rc1+ #3\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ...\\nCall Trace:\\n __dump_stack lib/dump_stack.c:77 [inline]\\n dump_stack+0x137/0x1be lib/dump_stack.c:118\\n print_address_description+0x6c/0x640 mm/kasan/report.c:385\\n __kasan_report mm/kasan/report.c:545 [inline]\\n kasan_report+0x13d/0x1e0 mm/kasan/report.c:562\\n fb_mode_is_equal+0x36e/0x5e0 drivers/video/fbdev/core/modedb.c:924\\n fbcon_mode_deleted+0x16a/0x220 drivers/video/fbdev/core/fbcon.c:2746\\n fb_set_var+0x1e1/0xdb0 drivers/video/fbdev/core/fbmem.c:975\\n do_fb_ioctl+0x4d9/0x6e0 drivers/video/fbdev/core/fbmem.c:1108\\n vfs_ioctl fs/ioctl.c:48 [inline]\\n __do_sys_ioctl fs/ioctl.c:753 [inline]\\n __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739\\n do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46\\n entry_SYSCALL_64_after_hwframe+0x44/0xa9\\n\\nFreed by task 18960:\\n kasan_save_stack mm/kasan/common.c:48 [inline]\\n kasan_set_track+0x3d/0x70 mm/kasan/common.c:56\\n kasan_set_free_info+0x17/0x30 mm/kasan/generic.c:355\\n __kasan_slab_free+0x108/0x140 mm/kasan/common.c:422\\n slab_free_hook mm/slub.c:1541 [inline]\\n slab_free_freelist_hook+0xd6/0x1a0 mm/slub.c:1574\\n slab_free mm/slub.c:3139 [inline]\\n kfree+0xca/0x3d0 mm/slub.c:4121\\n fb_delete_videomode+0x56a/0x820 drivers/video/fbdev/core/modedb.c:1104\\n fb_set_var+0x1f3/0xdb0 drivers/video/fbdev/core/fbmem.c:978\\n do_fb_ioctl+0x4d9/0x6e0 drivers/video/fbdev/core/fbmem.c:1108\\n vfs_ioctl fs/ioctl.c:48 [inline]\\n __do_sys_ioctl fs/ioctl.c:753 [inline]\\n __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739\\n do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46\\n entry_SYSCALL_64_after_hwframe+0x44/0xa9\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux se ha resuelto la siguiente vulnerabilidad: fbmem: No elimina el modo que a\u00fan est\u00e1 en uso. La ejecuci\u00f3n de fb_delete_videomode() no se basa en el resultado del fbcon_mode_deleted() anterior. Como resultado, el modo se elimina directamente, independientemente de si todav\u00eda est\u00e1 en uso, lo que puede causar UAF. ==================================================== ================ BUG: KASAN: use-after-free en fb_mode_is_equal+0x36e/0x5e0 \\\\ drivers/video/fbdev/core/modedb.c:924 Lectura de tama\u00f1o 4 en addr ffff88807e0ddb1c por tarea syz-executor.0/18962 CPU: 2 PID: 18962 Comm: syz-executor.0 No contaminado 5.10.45-rc1+ #3 Nombre de hardware: PC est\u00e1ndar QEMU (i440FX + PIIX, 1996), BIOS .. Seguimiento de llamadas: __dump_stack lib/dump_stack.c:77 [en l\u00ednea] dump_stack+0x137/0x1be lib/dump_stack.c:118 print_address_description+0x6c/0x640 mm/kasan/report.c:385 __kasan_report mm/kasan/report.c: 545 [en l\u00ednea] kasan_report+0x13d/0x1e0 mm/kasan/report.c:562 fb_mode_is_equal+0x36e/0x5e0 drivers/video/fbdev/core/modedb.c:924 fbcon_mode_deleted+0x16a/0x220 drivers/video/fbdev/core/fbcon .c:2746 fb_set_var+0x1e1/0xdb0 drivers/video/fbdev/core/fbmem.c:975 do_fb_ioctl+0x4d9/0x6e0 drivers/video/fbdev/core/fbmem.c:1108 vfs_ioctl fs/ioctl.c:48 [en l\u00ednea ] __do_sys_ioctl fs/ioctl.c:753 [en l\u00ednea] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 Entry_SYSCALL_64_after_hwframe+0x44/0xa9 Liberado por tarea 18960: kasan_save_stack mm/kasan/common.c:48 [en l\u00ednea] kasan_set_track+0x3d/0x70 mm/kasan/common.c:56 kasan_set_free_info+0x17/0x30 mm/kasan/generic.c:355 __kasan_slab_free+0x108/0x140 mm/kasan/ common.c:422 slab_free_hook mm/slub.c:1541 [en l\u00ednea] slab_free_freelist_hook+0xd6/0x1a0 mm/slub.c:1574 slab_free mm/slub.c:3139 [en l\u00ednea] kfree+0xca/0x3d0 mm/slub.c: 4121 fb_delete_videomode+0x56a/0x820 controladores/video/fbdev/core/modedb.c:1104 fb_set_var+0x1f3/0xdb0 controladores/video/fbdev/core/fbmem.c:978 do_fb_ioctl+0x4d9/0x6e0 controladores/video/fbdev/core/ fbmem.c:1108 vfs_ioctl fs/ioctl.c:48 [en l\u00ednea] __do_sys_ioctl fs/ioctl.c:753 [en l\u00ednea] __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/ common.c:46 entrada_SYSCALL_64_after_hwframe+0x44/0xa9\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":7.8,\"baseSeverity\":\"HIGH\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":1.8,\"impactScore\":5.9}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-416\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.3\",\"versionEndExcluding\":\"5.4.134\",\"matchCriteriaId\":\"B6466E90-E229-4926-BEA7-9D888047B9C9\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.5\",\"versionEndExcluding\":\"5.10.52\",\"matchCriteriaId\":\"7C1E6FB6-53C8-4DC4-8AE5-93094BA39F62\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.11\",\"versionEndExcluding\":\"5.12.19\",\"matchCriteriaId\":\"34C1A2F4-DD44-4CF1-8FD4-751A0D746A9E\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"5.13\",\"versionEndExcluding\":\"5.13.4\",\"matchCriteriaId\":\"F93FA3CC-0C79-410B-A7D7-245C2AA0723A\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*\",\"matchCriteriaId\":\"71268287-21A8-4488-AA4F-23C473153131\"}]}]}],\"references\":[{\"url\":\"https://git.kernel.org/stable/c/087bff9acd2ec6db3f61aceb3224bde90fe0f7f8\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0af778269a522c988ef0b4188556aba97fb420cc\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/359311b85ebec7c07c3a08ae2f3def946cad33fa\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d6e76469157d8f240e5dec6f8411aa8d306b1126\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f193509afc7ff37a46862610c93b896044d5b693\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/087bff9acd2ec6db3f61aceb3224bde90fe0f7f8\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/0af778269a522c988ef0b4188556aba97fb420cc\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/359311b85ebec7c07c3a08ae2f3def946cad33fa\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/d6e76469157d8f240e5dec6f8411aa8d306b1126\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]},{\"url\":\"https://git.kernel.org/stable/c/f193509afc7ff37a46862610c93b896044d5b693\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Patch\"]}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CVE Program Container\", \"references\": [{\"url\": \"https://git.kernel.org/stable/c/359311b85ebec7c07c3a08ae2f3def946cad33fa\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/087bff9acd2ec6db3f61aceb3224bde90fe0f7f8\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/f193509afc7ff37a46862610c93b896044d5b693\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/d6e76469157d8f240e5dec6f8411aa8d306b1126\", \"tags\": [\"x_transferred\"]}, {\"url\": \"https://git.kernel.org/stable/c/0af778269a522c988ef0b4188556aba97fb420cc\", \"tags\": [\"x_transferred\"]}], \"providerMetadata\": {\"orgId\": \"af854a3a-2127-422b-91ae-364da2661108\", \"shortName\": \"CVE\", \"dateUpdated\": \"2024-08-04T05:32:08.605Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2021-47338\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-06-12T15:00:51.209603Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-06-12T15:00:59.440Z\"}}], \"cna\": {\"title\": \"fbmem: Do not delete the mode that is still in use\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"13ff178ccd6d\", \"lessThan\": \"359311b85ebe\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"13ff178ccd6d\", \"lessThan\": \"087bff9acd2e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"13ff178ccd6d\", \"lessThan\": \"f193509afc7f\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"13ff178ccd6d\", \"lessThan\": \"d6e76469157d\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"13ff178ccd6d\", \"lessThan\": \"0af778269a52\", \"versionType\": \"git\"}], \"programFiles\": [\"drivers/video/fbdev/core/fbmem.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"5.3\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"5.3\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"5.4.134\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.4.*\"}, {\"status\": \"unaffected\", \"version\": \"5.10.52\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.10.*\"}, {\"status\": \"unaffected\", \"version\": \"5.12.19\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.12.*\"}, {\"status\": \"unaffected\", \"version\": \"5.13.4\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"5.13.*\"}, {\"status\": \"unaffected\", \"version\": \"5.14\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"drivers/video/fbdev/core/fbmem.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/359311b85ebec7c07c3a08ae2f3def946cad33fa\"}, {\"url\": \"https://git.kernel.org/stable/c/087bff9acd2ec6db3f61aceb3224bde90fe0f7f8\"}, {\"url\": \"https://git.kernel.org/stable/c/f193509afc7ff37a46862610c93b896044d5b693\"}, {\"url\": \"https://git.kernel.org/stable/c/d6e76469157d8f240e5dec6f8411aa8d306b1126\"}, {\"url\": \"https://git.kernel.org/stable/c/0af778269a522c988ef0b4188556aba97fb420cc\"}], \"x_generator\": {\"engine\": \"bippy-9e1c9544281a\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In the Linux kernel, the following vulnerability has been resolved:\\n\\nfbmem: Do not delete the mode that is still in use\\n\\nThe execution of fb_delete_videomode() is not based on the result of the\\nprevious fbcon_mode_deleted(). As a result, the mode is directly deleted,\\nregardless of whether it is still in use, which may cause UAF.\\n\\n==================================================================\\nBUG: KASAN: use-after-free in fb_mode_is_equal+0x36e/0x5e0 \\\\\\ndrivers/video/fbdev/core/modedb.c:924\\nRead of size 4 at addr ffff88807e0ddb1c by task syz-executor.0/18962\\n\\nCPU: 2 PID: 18962 Comm: syz-executor.0 Not tainted 5.10.45-rc1+ #3\\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS ...\\nCall Trace:\\n __dump_stack lib/dump_stack.c:77 [inline]\\n dump_stack+0x137/0x1be lib/dump_stack.c:118\\n print_address_description+0x6c/0x640 mm/kasan/report.c:385\\n __kasan_report mm/kasan/report.c:545 [inline]\\n kasan_report+0x13d/0x1e0 mm/kasan/report.c:562\\n fb_mode_is_equal+0x36e/0x5e0 drivers/video/fbdev/core/modedb.c:924\\n fbcon_mode_deleted+0x16a/0x220 drivers/video/fbdev/core/fbcon.c:2746\\n fb_set_var+0x1e1/0xdb0 drivers/video/fbdev/core/fbmem.c:975\\n do_fb_ioctl+0x4d9/0x6e0 drivers/video/fbdev/core/fbmem.c:1108\\n vfs_ioctl fs/ioctl.c:48 [inline]\\n __do_sys_ioctl fs/ioctl.c:753 [inline]\\n __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739\\n do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46\\n entry_SYSCALL_64_after_hwframe+0x44/0xa9\\n\\nFreed by task 18960:\\n kasan_save_stack mm/kasan/common.c:48 [inline]\\n kasan_set_track+0x3d/0x70 mm/kasan/common.c:56\\n kasan_set_free_info+0x17/0x30 mm/kasan/generic.c:355\\n __kasan_slab_free+0x108/0x140 mm/kasan/common.c:422\\n slab_free_hook mm/slub.c:1541 [inline]\\n slab_free_freelist_hook+0xd6/0x1a0 mm/slub.c:1574\\n slab_free mm/slub.c:3139 [inline]\\n kfree+0xca/0x3d0 mm/slub.c:4121\\n fb_delete_videomode+0x56a/0x820 drivers/video/fbdev/core/modedb.c:1104\\n fb_set_var+0x1f3/0xdb0 drivers/video/fbdev/core/fbmem.c:978\\n do_fb_ioctl+0x4d9/0x6e0 drivers/video/fbdev/core/fbmem.c:1108\\n vfs_ioctl fs/ioctl.c:48 [inline]\\n __do_sys_ioctl fs/ioctl.c:753 [inline]\\n __se_sys_ioctl+0xfb/0x170 fs/ioctl.c:739\\n do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46\\n entry_SYSCALL_64_after_hwframe+0x44/0xa9\"}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2024-11-04T12:03:58.258Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2021-47338\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2024-11-04T12:03:58.258Z\", \"dateReserved\": \"2024-05-21T14:28:16.978Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-05-21T14:35:47.028Z\", \"assignerShortName\": \"Linux\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


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