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vuln-cve/data/2025/68xxx/CVE-2025-68367.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-68367",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-12-16T14:48:05.309Z",
"datePublished": "2025-12-24T10:32:54.084Z",
"dateUpdated": "2026-05-11T21:51:50.117Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T21:51:50.117Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmacintosh/mac_hid: fix race condition in mac_hid_toggle_emumouse\n\nThe following warning appears when running syzkaller, and this issue also\nexists in the mainline code.\n\n ------------[ cut here ]------------\n list_add double add: new=ffffffffa57eee28, prev=ffffffffa57eee28, next=ffffffffa5e63100.\n WARNING: CPU: 0 PID: 1491 at lib/list_debug.c:35 __list_add_valid_or_report+0xf7/0x130\n Modules linked in:\n CPU: 0 PID: 1491 Comm: syz.1.28 Not tainted 6.6.0+ #3\n Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014\n RIP: 0010:__list_add_valid_or_report+0xf7/0x130\n RSP: 0018:ff1100010dfb7b78 EFLAGS: 00010282\n RAX: 0000000000000000 RBX: ffffffffa57eee18 RCX: ffffffff97fc9817\n RDX: 0000000000040000 RSI: ffa0000002383000 RDI: 0000000000000001\n RBP: ffffffffa57eee28 R08: 0000000000000001 R09: ffe21c0021bf6f2c\n R10: 0000000000000001 R11: 6464615f7473696c R12: ffffffffa5e63100\n R13: ffffffffa57eee28 R14: ffffffffa57eee28 R15: ff1100010dfb7d48\n FS: 00007fb14398b640(0000) GS:ff11000119600000(0000) knlGS:0000000000000000\n CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\n CR2: 0000000000000000 CR3: 000000010d096005 CR4: 0000000000773ef0\n DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\n DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\n PKRU: 80000000\n Call Trace:\n <TASK>\n input_register_handler+0xb3/0x210\n mac_hid_start_emulation+0x1c5/0x290\n mac_hid_toggle_emumouse+0x20a/0x240\n proc_sys_call_handler+0x4c2/0x6e0\n new_sync_write+0x1b1/0x2d0\n vfs_write+0x709/0x950\n ksys_write+0x12a/0x250\n do_syscall_64+0x5a/0x110\n entry_SYSCALL_64_after_hwframe+0x78/0xe2\n\nThe WARNING occurs when two processes concurrently write to the mac-hid\nemulation sysctl, causing a race condition in mac_hid_toggle_emumouse().\nBoth processes read old_val=0, then both try to register the input handler,\nleading to a double list_add of the same handler.\n\n CPU0 CPU1\n ------------------------- -------------------------\n vfs_write() //write 1 vfs_write() //write 1\n proc_sys_write() proc_sys_write()\n mac_hid_toggle_emumouse() mac_hid_toggle_emumouse()\n old_val = *valp // old_val=0\n old_val = *valp // old_val=0\n mutex_lock_killable()\n proc_dointvec() // *valp=1\n mac_hid_start_emulation()\n input_register_handler()\n mutex_unlock()\n mutex_lock_killable()\n proc_dointvec()\n mac_hid_start_emulation()\n input_register_handler() //Trigger Warning\n mutex_unlock()\n\nFix this by moving the old_val read inside the mutex lock region."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"drivers/macintosh/mac_hid.c"
],
"versions": [
{
"version": "99b089c3c38a83ebaeb1cc4584ddcde841626467",
"lessThan": "d5f1d40fd342b589420de7508b4c748fcf28122e",
"status": "affected",
"versionType": "git"
},
{
"version": "99b089c3c38a83ebaeb1cc4584ddcde841626467",
"lessThan": "14c209835e47a87e6da94bb9401e570dcc14f31f",
"status": "affected",
"versionType": "git"
},
{
"version": "99b089c3c38a83ebaeb1cc4584ddcde841626467",
"lessThan": "583d36523f56d8e9ddfa0bec20743a6faefc9b74",
"status": "affected",
"versionType": "git"
},
{
"version": "99b089c3c38a83ebaeb1cc4584ddcde841626467",
"lessThan": "61abf8c3162d155b4fd0fb251f08557093363a0a",
"status": "affected",
"versionType": "git"
},
{
"version": "99b089c3c38a83ebaeb1cc4584ddcde841626467",
"lessThan": "230621ffdb361d15cd3ef92d8b4fa8d314f4fad4",
"status": "affected",
"versionType": "git"
},
{
"version": "99b089c3c38a83ebaeb1cc4584ddcde841626467",
"lessThan": "388391dd1cc567fcf0b372b63d414c119d23e911",
"status": "affected",
"versionType": "git"
},
{
"version": "99b089c3c38a83ebaeb1cc4584ddcde841626467",
"lessThan": "48a7d427eb65922b3f17fbe00e2bbc7cb9eac381",
"status": "affected",
"versionType": "git"
},
{
"version": "99b089c3c38a83ebaeb1cc4584ddcde841626467",
"lessThan": "1e4b207ffe54cf33a4b7a2912c4110f89c73bf3f",
"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/macintosh/mac_hid.c"
],
"versions": [
{
"version": "2.6.34",
"status": "affected"
},
{
"version": "0",
"lessThan": "2.6.34",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.248",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.198",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.160",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.120",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.63",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.17.13",
"lessThanOrEqual": "6.17.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.2",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.19",
"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": "2.6.34",
"versionEndExcluding": "5.10.248"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.34",
"versionEndExcluding": "5.15.198"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.34",
"versionEndExcluding": "6.1.160"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.34",
"versionEndExcluding": "6.6.120"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.34",
"versionEndExcluding": "6.12.63"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.34",
"versionEndExcluding": "6.17.13"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.34",
"versionEndExcluding": "6.18.2"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "2.6.34",
"versionEndExcluding": "6.19"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/d5f1d40fd342b589420de7508b4c748fcf28122e"
},
{
"url": "https://git.kernel.org/stable/c/14c209835e47a87e6da94bb9401e570dcc14f31f"
},
{
"url": "https://git.kernel.org/stable/c/583d36523f56d8e9ddfa0bec20743a6faefc9b74"
},
{
"url": "https://git.kernel.org/stable/c/61abf8c3162d155b4fd0fb251f08557093363a0a"
},
{
"url": "https://git.kernel.org/stable/c/230621ffdb361d15cd3ef92d8b4fa8d314f4fad4"
},
{
"url": "https://git.kernel.org/stable/c/388391dd1cc567fcf0b372b63d414c119d23e911"
},
{
"url": "https://git.kernel.org/stable/c/48a7d427eb65922b3f17fbe00e2bbc7cb9eac381"
},
{
"url": "https://git.kernel.org/stable/c/1e4b207ffe54cf33a4b7a2912c4110f89c73bf3f"
}
],
"title": "macintosh/mac_hid: fix race condition in mac_hid_toggle_emumouse",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}
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