{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2022-50614", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50614", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-12-08T01:16:26.689Z", "updatedAt": "2026-05-11T19:22:15.058Z", "importedAt": "2026-10-24T01:56:49.724Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "misc: pci_endpoint_test: Fix pci_endpoint_test_{copy,write,read}() panic", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\nmisc: pci_endpoint_test: Fix pci_endpoint_test_{copy,write,read}() panic\n\nThe dma_map_single() doesn't permit zero length mapping. It causes a follow\npanic.\n\nA panic was reported on arm64:\n\n[ 60.137988] ------------[ cut here ]------------\n[ 60.142630] kernel BUG at kernel/dma/swiotlb.c:624!\n[ 60.147508] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP\n[ 60.152992] Modules linked in: dw_hdmi_cec crct10dif_ce simple_bridge rcar_fdp1 vsp1 rcar_vin videobuf2_vmalloc rcar_csi2 v4l\n2_mem2mem videobuf2_dma_contig videobuf2_memops pci_endpoint_test videobuf2_v4l2 videobuf2_common rcar_fcp v4l2_fwnode v4l2_asyn\nc videodev mc gpio_bd9571mwv max9611 pwm_rcar ccree at24 authenc libdes phy_rcar_gen3_usb3 usb_dmac display_connector pwm_bl\n[ 60.186252] CPU: 0 PID: 508 Comm: pcitest Not tainted 6.0.0-rc1rpci-dev+ #237\n[ 60.193387] Hardware name: Renesas Salvator-X 2nd version board based on r8a77951 (DT)\n[ 60.201302] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n[ 60.208263] pc : swiotlb_tbl_map_single+0x2c0/0x590\n[ 60.213149] lr : swiotlb_map+0x88/0x1f0\n[ 60.216982] sp : ffff80000a883bc0\n[ 60.220292] x29: ffff80000a883bc0 x28: 0000000000000000 x27: 0000000000000000\n[ 60.227430] x26: 0000000000000000 x25: ffff0004c0da20d0 x24: ffff80000a1f77c0\n[ 60.234567] x23: 0000000000000002 x22: 0001000040000010 x21: 000000007a000000\n[ 60.241703] x20: 0000000000200000 x19: 0000000000000000 x18: 0000000000000000\n[ 60.248840] x17: 0000000000000000 x16: 0000000000000000 x15: ffff0006ff7b9180\n[ 60.255977] x14: ffff0006ff7b9180 x13: 0000000000000000 x12: 0000000000000000\n[ 60.263113] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000\n[ 60.270249] x8 : 0001000000000010 x7 : ffff0004c6754b20 x6 : 0000000000000000\n[ 60.277385] x5 : ffff0004c0da2090 x4 : 0000000000000000 x3 : 0000000000000001\n[ 60.284521] x2 : 0000000040000000 x1 : 0000000000000000 x0 : 0000000040000010\n[ 60.291658] Call trace:\n[ 60.294100] swiotlb_tbl_map_single+0x2c0/0x590\n[ 60.298629] swiotlb_map+0x88/0x1f0\n[ 60.302115] dma_map_page_attrs+0x188/0x230\n[ 60.306299] pci_endpoint_test_ioctl+0x5e4/0xd90 [pci_endpoint_test]\n[ 60.312660] __arm64_sys_ioctl+0xa8/0xf0\n[ 60.316583] invoke_syscall+0x44/0x108\n[ 60.320334] el0_svc_common.constprop.0+0xcc/0xf0\n[ 60.325038] do_el0_svc+0x2c/0xb8\n[ 60.328351] el0_svc+0x2c/0x88\n[ 60.331406] el0t_64_sync_handler+0xb8/0xc0\n[ 60.335587] el0t_64_sync+0x18c/0x190\n[ 60.339251] Code: 52800013 d2e00414 35fff45c d503201f (d4210000)\n[ 60.345344] ---[ end trace 0000000000000000 ]---\n\nTo fix it, this patch adds a checking the payload length if it is zero.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "343dc693f7b79885197f9d37dd8b711b0e3ffc8f", "status": "affected", "versionType": "git", "lessThan": "0df206bdc6204b758585bbe159a55e23e7917b13" }, { "version": "343dc693f7b79885197f9d37dd8b711b0e3ffc8f", "status": "affected", "versionType": "git", "lessThan": "e5ebcbb4f967af2083d409271aaf7c7d8351603f" }, { "version": "343dc693f7b79885197f9d37dd8b711b0e3ffc8f", "status": "affected", "versionType": "git", "lessThan": "279116cb0bc5cd8af65d6a00ffe074bd09842f88" }, { "version": "343dc693f7b79885197f9d37dd8b711b0e3ffc8f", "status": "affected", "versionType": "git", "lessThan": "6c01739c2aba19553beb20491b05515af9246f0f" }, { "version": "343dc693f7b79885197f9d37dd8b711b0e3ffc8f", "status": "affected", "versionType": "git", "lessThan": "8e30538eca016de8e252bef174beadecd64239f0" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "4.15", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "4.15" }, { "version": "5.10.148", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.74", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "5.19.16", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.19.*" }, { "version": "6.0.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "6.0.*" }, { "version": "6.1", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }