ghsa-mrq3-qx26-xjxj
Vulnerability from github
In the Linux kernel, the following vulnerability has been resolved:
i2c: cros-ec-tunnel: defer probe if parent EC is not present
When i2c-cros-ec-tunnel and the EC driver are built-in, the EC parent device will not be found, leading to NULL pointer dereference.
That can also be reproduced by unbinding the controller driver and then loading i2c-cros-ec-tunnel module (or binding the device).
[ 271.991245] BUG: kernel NULL pointer dereference, address: 0000000000000058
[ 271.998215] #PF: supervisor read access in kernel mode
[ 272.003351] #PF: error_code(0x0000) - not-present page
[ 272.008485] PGD 0 P4D 0
[ 272.011022] Oops: Oops: 0000 [#1] SMP NOPTI
[ 272.015207] CPU: 0 UID: 0 PID: 3859 Comm: insmod Tainted: G S 6.15.0-rc1-00004-g44722359ed83 #30 PREEMPT(full) 3c7fb39a552e7d949de2ad921a7d6588d3a4fdc5
[ 272.030312] Tainted: [S]=CPU_OUT_OF_SPEC
[ 272.034233] Hardware name: HP Berknip/Berknip, BIOS Google_Berknip.13434.356.0 05/17/2021
[ 272.042400] RIP: 0010:ec_i2c_probe+0x2b/0x1c0 [i2c_cros_ec_tunnel]
[ 272.048577] Code: 1f 44 00 00 41 57 41 56 41 55 41 54 53 48 83 ec 10 65 48 8b 05 06 a0 6c e7 48 89 44 24 08 4c 8d 7f 10 48 8b 47 50 4c 8b 60 78 <49> 83 7c 24 58 00 0f 84 2f 01 00 00 48 89 fb be 30 06 00 00 4c 9
[ 272.067317] RSP: 0018:ffffa32082a03940 EFLAGS: 00010282
[ 272.072541] RAX: ffff969580b6a810 RBX: ffff969580b68c10 RCX: 0000000000000000
[ 272.079672] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff969580b68c00
[ 272.086804] RBP: 00000000fffffdfb R08: 0000000000000000 R09: 0000000000000000
[ 272.093936] R10: 0000000000000000 R11: ffffffffc0600000 R12: 0000000000000000
[ 272.101067] R13: ffffffffa666fbb8 R14: ffffffffc05b5528 R15: ffff969580b68c10
[ 272.108198] FS: 00007b930906fc40(0000) GS:ffff969603149000(0000) knlGS:0000000000000000
[ 272.116282] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 272.122024] CR2: 0000000000000058 CR3: 000000012631c000 CR4: 00000000003506f0
[ 272.129155] Call Trace:
[ 272.131606]
{
"affected": [],
"aliases": [
"CVE-2025-37781"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-01T14:15:42Z",
"severity": null
},
"details": "In the Linux kernel, the following vulnerability has been resolved:\n\ni2c: cros-ec-tunnel: defer probe if parent EC is not present\n\nWhen i2c-cros-ec-tunnel and the EC driver are built-in, the EC parent\ndevice will not be found, leading to NULL pointer dereference.\n\nThat can also be reproduced by unbinding the controller driver and then\nloading i2c-cros-ec-tunnel module (or binding the device).\n\n[ 271.991245] BUG: kernel NULL pointer dereference, address: 0000000000000058\n[ 271.998215] #PF: supervisor read access in kernel mode\n[ 272.003351] #PF: error_code(0x0000) - not-present page\n[ 272.008485] PGD 0 P4D 0\n[ 272.011022] Oops: Oops: 0000 [#1] SMP NOPTI\n[ 272.015207] CPU: 0 UID: 0 PID: 3859 Comm: insmod Tainted: G S 6.15.0-rc1-00004-g44722359ed83 #30 PREEMPT(full) 3c7fb39a552e7d949de2ad921a7d6588d3a4fdc5\n[ 272.030312] Tainted: [S]=CPU_OUT_OF_SPEC\n[ 272.034233] Hardware name: HP Berknip/Berknip, BIOS Google_Berknip.13434.356.0 05/17/2021\n[ 272.042400] RIP: 0010:ec_i2c_probe+0x2b/0x1c0 [i2c_cros_ec_tunnel]\n[ 272.048577] Code: 1f 44 00 00 41 57 41 56 41 55 41 54 53 48 83 ec 10 65 48 8b 05 06 a0 6c e7 48 89 44 24 08 4c 8d 7f 10 48 8b 47 50 4c 8b 60 78 \u003c49\u003e 83 7c 24 58 00 0f 84 2f 01 00 00 48 89 fb be 30 06 00 00 4c 9\n[ 272.067317] RSP: 0018:ffffa32082a03940 EFLAGS: 00010282\n[ 272.072541] RAX: ffff969580b6a810 RBX: ffff969580b68c10 RCX: 0000000000000000\n[ 272.079672] RDX: 0000000000000000 RSI: 0000000000000282 RDI: ffff969580b68c00\n[ 272.086804] RBP: 00000000fffffdfb R08: 0000000000000000 R09: 0000000000000000\n[ 272.093936] R10: 0000000000000000 R11: ffffffffc0600000 R12: 0000000000000000\n[ 272.101067] R13: ffffffffa666fbb8 R14: ffffffffc05b5528 R15: ffff969580b68c10\n[ 272.108198] FS: 00007b930906fc40(0000) GS:ffff969603149000(0000) knlGS:0000000000000000\n[ 272.116282] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n[ 272.122024] CR2: 0000000000000058 CR3: 000000012631c000 CR4: 00000000003506f0\n[ 272.129155] Call Trace:\n[ 272.131606] \u003cTASK\u003e\n[ 272.133709] ? acpi_dev_pm_attach+0xdd/0x110\n[ 272.137985] platform_probe+0x69/0xa0\n[ 272.141652] really_probe+0x152/0x310\n[ 272.145318] __driver_probe_device+0x77/0x110\n[ 272.149678] driver_probe_device+0x1e/0x190\n[ 272.153864] __driver_attach+0x10b/0x1e0\n[ 272.157790] ? driver_attach+0x20/0x20\n[ 272.161542] bus_for_each_dev+0x107/0x150\n[ 272.165553] bus_add_driver+0x15d/0x270\n[ 272.169392] driver_register+0x65/0x110\n[ 272.173232] ? cleanup_module+0xa80/0xa80 [i2c_cros_ec_tunnel 3a00532f3f4af4a9eade753f86b0f8dd4e4e5698]\n[ 272.182617] do_one_initcall+0x110/0x350\n[ 272.186543] ? security_kernfs_init_security+0x49/0xd0\n[ 272.191682] ? __kernfs_new_node+0x1b9/0x240\n[ 272.195954] ? security_kernfs_init_security+0x49/0xd0\n[ 272.201093] ? __kernfs_new_node+0x1b9/0x240\n[ 272.205365] ? kernfs_link_sibling+0x105/0x130\n[ 272.209810] ? kernfs_next_descendant_post+0x1c/0xa0\n[ 272.214773] ? kernfs_activate+0x57/0x70\n[ 272.218699] ? kernfs_add_one+0x118/0x160\n[ 272.222710] ? __kernfs_create_file+0x71/0xa0\n[ 272.227069] ? sysfs_add_bin_file_mode_ns+0xd6/0x110\n[ 272.232033] ? internal_create_group+0x453/0x4a0\n[ 272.236651] ? __vunmap_range_noflush+0x214/0x2d0\n[ 272.241355] ? __free_frozen_pages+0x1dc/0x420\n[ 272.245799] ? free_vmap_area_noflush+0x10a/0x1c0\n[ 272.250505] ? load_module+0x1509/0x16f0\n[ 272.254431] do_init_module+0x60/0x230\n[ 272.258181] __se_sys_finit_module+0x27a/0x370\n[ 272.262627] do_syscall_64+0x6a/0xf0\n[ 272.266206] ? do_syscall_64+0x76/0xf0\n[ 272.269956] ? irqentry_exit_to_user_mode+0x79/0x90\n[ 272.274836] entry_SYSCALL_64_after_hwframe+0x55/0x5d\n[ 272.279887] RIP: 0033:0x7b9309168d39\n[ 272.283466] Code: 5b 41 5c 5d c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 \u003c48\u003e 3d 01 f0 ff ff 73 01 c3 48 8b 0d af 40 0c 00 f7 d8 64 89 01 8\n[ 272.302210] RSP: 002b:00007fff50f1a288 EFLAGS: 00000246 ORIG_RAX: 000\n---truncated---",
"id": "GHSA-mrq3-qx26-xjxj",
"modified": "2025-05-02T09:30:34Z",
"published": "2025-05-01T15:31:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-37781"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/092de5ac8cb2eaa9593a765fa92ba39d8173f984"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/1355b5ca4782be85a2ef7275e4c508f770d0fb27"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/3090cad5ccff8963b95160f4060068048a1e4c4c"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/424eafe65647a8d6c690284536e711977153195a"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/b66d4910a608427367c4e21499e149f085782df7"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/cd83035b6f2a102c2d5acd3bfb2a11ff967aaba6"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/da8edc9eb2516aface7f86be5fa6d09c0d07b9f8"
},
{
"type": "WEB",
"url": "https://git.kernel.org/stable/c/e89bf1311d4497c6743f3021e9c481b16c3a41c9"
}
],
"schema_version": "1.4.0",
"severity": []
}
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.