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CVE-2024-56787— soc: imx8m: Probe the SoC driver as platform driver

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于i.MX8M Plus硬件的SoC驱动在异步探测时，由于时钟驱动尚未探测完成，导致soc-imx8m.c驱动的of_clk_get_by_name调用返回-EPROBE_DEFER，进而影响SoC驱动的正常加载和系统启动。

AI Predicted 5.5 Difficulty: Trivial EPSS 0.21% · P10

Possible ATT&CK Techniques 1 AI

T1518.001 · Security Software Discovery

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux a7e26f356ca12906a164d83c9e9f8527ee7da022< e497edb8f31ec2c2b6f4ce930e175aa2da8be334 affected
a7e26f356ca12906a164d83c9e9f8527ee7da022< ea2ff66feb5f9b183f9e2f9d06c21340bd88de12 affected
a7e26f356ca12906a164d83c9e9f8527ee7da022< 2129f6faa5dfe8c6b87aad11720bf75edd77d3e4 affected
a7e26f356ca12906a164d83c9e9f8527ee7da022< 997a3c04d7fa3d1d385c14691350d096fada648c affected
a7e26f356ca12906a164d83c9e9f8527ee7da022< 9cc832d37799dbea950c4c8a34721b02b8b5a8ff affected
5.2 affected
< 5.2 unaffected
5.15.174≤ 5.15.* unaffected
… +4 more rows
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I. Basic Information for CVE-2024-56787

Vulnerability Information
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Vulnerability Title
soc: imx8m: Probe the SoC driver as platform driver
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: soc: imx8m: Probe the SoC driver as platform driver With driver_async_probe=* on kernel command line, the following trace is produced because on i.MX8M Plus hardware because the soc-imx8m.c driver calls of_clk_get_by_name() which returns -EPROBE_DEFER because the clock driver is not yet probed. This was not detected during regular testing without driver_async_probe. Convert the SoC code to platform driver and instantiate a platform device in its current device_initcall() to probe the platform driver. Rework .soc_revision callback to always return valid error code and return SoC revision via parameter. This way, if anything in the .soc_revision callback return -EPROBE_DEFER, it gets propagated to .probe and the .probe will get retried later. " ------------[ cut here ]------------ WARNING: CPU: 1 PID: 1 at drivers/soc/imx/soc-imx8m.c:115 imx8mm_soc_revision+0xdc/0x180 CPU: 1 UID: 0 PID: 1 Comm: swapper/0 Not tainted 6.11.0-next-20240924-00002-g2062bb554dea #603 Hardware name: DH electronics i.MX8M Plus DHCOM Premium Developer Kit (3) (DT) pstate: 20000005 (nzCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : imx8mm_soc_revision+0xdc/0x180 lr : imx8mm_soc_revision+0xd0/0x180 sp : ffff8000821fbcc0 x29: ffff8000821fbce0 x28: 0000000000000000 x27: ffff800081810120 x26: ffff8000818a9970 x25: 0000000000000006 x24: 0000000000824311 x23: ffff8000817f42c8 x22: ffff0000df8be210 x21: fffffffffffffdfb x20: ffff800082780000 x19: 0000000000000001 x18: ffffffffffffffff x17: ffff800081fff418 x16: ffff8000823e1000 x15: ffff0000c03b65e8 x14: ffff0000c00051b0 x13: ffff800082790000 x12: 0000000000000801 x11: ffff80008278ffff x10: ffff80008209d3a6 x9 : ffff80008062e95c x8 : ffff8000821fb9a0 x7 : 0000000000000000 x6 : 00000000000080e3 x5 : ffff0000df8c03d8 x4 : 0000000000000000 x3 : 0000000000000000 x2 : 0000000000000000 x1 : fffffffffffffdfb x0 : fffffffffffffdfb Call trace: imx8mm_soc_revision+0xdc/0x180 imx8_soc_init+0xb0/0x1e0 do_one_initcall+0x94/0x1a8 kernel_init_freeable+0x240/0x2a8 kernel_init+0x28/0x140 ret_from_fork+0x10/0x20 ---[ end trace 0000000000000000 ]--- SoC: i.MX8MP revision 1.1 "
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会的开源操作系统Linux所使用的内核。 Linux kernel存在安全漏洞，该漏洞源于i.MX8M Plus硬件的SoC驱动在异步探测时，由于时钟驱动尚未探测完成，导致soc-imx8m.c驱动的of_clk_get_by_name调用返回-EPROBE_DEFER，进而影响SoC驱动的正常加载和系统启动。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux a7e26f356ca12906a164d83c9e9f8527ee7da022 ~ e497edb8f31ec2c2b6f4ce930e175aa2da8be334 -
Linux Linux 5.2 -

II. Public POCs for CVE-2024-56787

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III. Intelligence Information for CVE-2024-56787

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Patches & Fixes for CVE-2024-56787 (5)

Same Patch Batch · Linux · 2025-01-08 · 16 CVEs total

CVE-2024-56779 9.8 CRITICAL nfsd: fix nfs4_openowner leak when concurrent nfsd4_open occur
CVE-2024-56775 7.8 HIGH drm/amd/display: Fix handling of plane refcount
CVE-2024-56784 7.8 HIGH drm/amd/display: Adding array index check to prevent memory corruption
CVE-2024-56770 net/sched: netem: account for backlog updates from child qdisc
CVE-2024-56771 mtd: spinand: winbond: Fix 512GW, 01GW, 01JW and 02JW ECC information
CVE-2024-56773 kunit: Fix potential null dereference in kunit_device_driver_test()
CVE-2024-56772 kunit: string-stream: Fix a UAF bug in kunit_init_suite()
CVE-2024-56774 btrfs: add a sanity check for btrfs root in btrfs_search_slot()
CVE-2024-56776 drm/sti: avoid potential dereference of error pointers
CVE-2024-56777 drm/sti: avoid potential dereference of error pointers in sti_gdp_atomic_check
CVE-2024-56778 drm/sti: avoid potential dereference of error pointers in sti_hqvdp_atomic_check
CVE-2024-56780 quota: flush quota_release_work upon quota writeback
CVE-2024-56782 ACPI: x86: Add adev NULL check to acpi_quirk_skip_serdev_enumeration()
CVE-2024-56783 netfilter: nft_socket: remove WARN_ON_ONCE on maximum cgroup level
CVE-2024-56785 MIPS: Loongson64: DTS: Really fix PCIe port nodes for ls7a

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

V. Comments for CVE-2024-56787

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