ghsa-3xmp-jf8j-rjxp
Vulnerability from github
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.
{
"affected": [],
"aliases": [
"CVE-2022-50614"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-08T02:15:47Z",
"severity": null
},
"details": "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\u0027t 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": "GHSA-3xmp-jf8j-rjxp",
"modified": "2025-12-08T03:31:02Z",
"published": "2025-12-08T03:31:02Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50614"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/0df206bdc6204b758585bbe159a55e23e7917b13"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/279116cb0bc5cd8af65d6a00ffe074bd09842f88"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/6c01739c2aba19553beb20491b05515af9246f0f"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/8e30538eca016de8e252bef174beadecd64239f0"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e5ebcbb4f967af2083d409271aaf7c7d8351603f"
}
],
"schema_version": "1.4.0",
"severity": []
}
Sightings
| Author | Source | Type | Date |
|---|
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