CVE-2022-50614 - Vulnerability Details

Vendors	Products
Linux Subscribe	Linux Kernel Subscribe

Link	Providers
https://git.kernel.org/stable/c/0df206bdc6204b758585bbe159a55e23e7917b13
https://git.kernel.org/stable/c/279116cb0bc5cd8af65d6a00ffe074bd09842f88
https://git.kernel.org/stable/c/6c01739c2aba19553beb20491b05515af9246f0f
https://git.kernel.org/stable/c/8e30538eca016de8e252bef174beadecd64239f0
https://git.kernel.org/stable/c/e5ebcbb4f967af2083d409271aaf7c7d8351603f

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: misc: pci_endpoint_test: Fix pci_endpoint_test_{copy,write,read}() panic The dma_map_single() doesn't permit zero length mapping. It causes a follow panic. A panic was reported on arm64: [ 60.137988] ------------[ cut here ]------------ [ 60.142630] kernel BUG at kernel/dma/swiotlb.c:624! [ 60.147508] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP [ 60.152992] Modules linked in: dw_hdmi_cec crct10dif_ce simple_bridge rcar_fdp1 vsp1 rcar_vin videobuf2_vmalloc rcar_csi2 v4l 2_mem2mem videobuf2_dma_contig videobuf2_memops pci_endpoint_test videobuf2_v4l2 videobuf2_common rcar_fcp v4l2_fwnode v4l2_asyn c videodev mc gpio_bd9571mwv max9611 pwm_rcar ccree at24 authenc libdes phy_rcar_gen3_usb3 usb_dmac display_connector pwm_bl [ 60.186252] CPU: 0 PID: 508 Comm: pcitest Not tainted 6.0.0-rc1rpci-dev+ #237 [ 60.193387] Hardware name: Renesas Salvator-X 2nd version board based on r8a77951 (DT) [ 60.201302] pstate: 00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 60.208263] pc : swiotlb_tbl_map_single+0x2c0/0x590 [ 60.213149] lr : swiotlb_map+0x88/0x1f0 [ 60.216982] sp : ffff80000a883bc0 [ 60.220292] x29: ffff80000a883bc0 x28: 0000000000000000 x27: 0000000000000000 [ 60.227430] x26: 0000000000000000 x25: ffff0004c0da20d0 x24: ffff80000a1f77c0 [ 60.234567] x23: 0000000000000002 x22: 0001000040000010 x21: 000000007a000000 [ 60.241703] x20: 0000000000200000 x19: 0000000000000000 x18: 0000000000000000 [ 60.248840] x17: 0000000000000000 x16: 0000000000000000 x15: ffff0006ff7b9180 [ 60.255977] x14: ffff0006ff7b9180 x13: 0000000000000000 x12: 0000000000000000 [ 60.263113] x11: 0000000000000000 x10: 0000000000000000 x9 : 0000000000000000 [ 60.270249] x8 : 0001000000000010 x7 : ffff0004c6754b20 x6 : 0000000000000000 [ 60.277385] x5 : ffff0004c0da2090 x4 : 0000000000000000 x3 : 0000000000000001 [ 60.284521] x2 : 0000000040000000 x1 : 0000000000000000 x0 : 0000000040000010 [ 60.291658] Call trace: [ 60.294100] swiotlb_tbl_map_single+0x2c0/0x590 [ 60.298629] swiotlb_map+0x88/0x1f0 [ 60.302115] dma_map_page_attrs+0x188/0x230 [ 60.306299] pci_endpoint_test_ioctl+0x5e4/0xd90 [pci_endpoint_test] [ 60.312660] __arm64_sys_ioctl+0xa8/0xf0 [ 60.316583] invoke_syscall+0x44/0x108 [ 60.320334] el0_svc_common.constprop.0+0xcc/0xf0 [ 60.325038] do_el0_svc+0x2c/0xb8 [ 60.328351] el0_svc+0x2c/0x88 [ 60.331406] el0t_64_sync_handler+0xb8/0xc0 [ 60.335587] el0t_64_sync+0x18c/0x190 [ 60.339251] Code: 52800013 d2e00414 35fff45c d503201f (d4210000) [ 60.345344] ---[ end trace 0000000000000000 ]--- To fix it, this patch adds a checking the payload length if it is zero.
Title		misc: pci_endpoint_test: Fix pci_endpoint_test_{copy,write,read}() panic
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/0df206bdc6204b758585bbe159a55e23e7917b13 https://git.kernel.org/stable/c/279116cb0bc5cd8af65d6a00ffe074bd09842f88 https://git.kernel.org/stable/c/6c01739c2aba19553beb20491b05515af9246f0f https://git.kernel.org/stable/c/8e30538eca016de8e252bef174beadecd64239f0 https://git.kernel.org/stable/c/e5ebcbb4f967af2083d409271aaf7c7d8351603f

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2022-50614", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-08T01:14:55.188Z", "datePublished": "2025-12-08T01:16:26.689Z", "dateUpdated": "2025-12-08T01:16:26.689Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-12-08T01:16:26.689Z"}, "descriptions": [{"lang": "en", "value": "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": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/misc/pci_endpoint_test.c"], "versions": [{"version": "343dc693f7b79885197f9d37dd8b711b0e3ffc8f", "lessThan": "0df206bdc6204b758585bbe159a55e23e7917b13", "status": "affected", "versionType": "git"}, {"version": "343dc693f7b79885197f9d37dd8b711b0e3ffc8f", "lessThan": "e5ebcbb4f967af2083d409271aaf7c7d8351603f", "status": "affected", "versionType": "git"}, {"version": "343dc693f7b79885197f9d37dd8b711b0e3ffc8f", "lessThan": "279116cb0bc5cd8af65d6a00ffe074bd09842f88", "status": "affected", "versionType": "git"}, {"version": "343dc693f7b79885197f9d37dd8b711b0e3ffc8f", "lessThan": "6c01739c2aba19553beb20491b05515af9246f0f", "status": "affected", "versionType": "git"}, {"version": "343dc693f7b79885197f9d37dd8b711b0e3ffc8f", "lessThan": "8e30538eca016de8e252bef174beadecd64239f0", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/misc/pci_endpoint_test.c"], "versions": [{"version": "4.15", "status": "affected"}, {"version": "0", "lessThan": "4.15", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.148", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.74", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.19.16", "lessThanOrEqual": "5.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.0.2", "lessThanOrEqual": "6.0.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.10.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.15.74"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "5.19.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.0.2"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.15", "versionEndExcluding": "6.1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/0df206bdc6204b758585bbe159a55e23e7917b13"}, {"url": "https://git.kernel.org/stable/c/e5ebcbb4f967af2083d409271aaf7c7d8351603f"}, {"url": "https://git.kernel.org/stable/c/279116cb0bc5cd8af65d6a00ffe074bd09842f88"}, {"url": "https://git.kernel.org/stable/c/6c01739c2aba19553beb20491b05515af9246f0f"}, {"url": "https://git.kernel.org/stable/c/8e30538eca016de8e252bef174beadecd64239f0"}], "title": "misc: pci_endpoint_test: Fix pci_endpoint_test_{copy,write,read}() panic", "x_generator": {"engine": "bippy-1.2.0"}}}}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2022-50614", "lastModified": "2025-12-08T02:15:47.063", "metrics": {}, "published": "2025-12-08T02:15:47.063", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/0df206bdc6204b758585bbe159a55e23e7917b13"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/279116cb0bc5cd8af65d6a00ffe074bd09842f88"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6c01739c2aba19553beb20491b05515af9246f0f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/8e30538eca016de8e252bef174beadecd64239f0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e5ebcbb4f967af2083d409271aaf7c7d8351603f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

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