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vuln-cve/data/2025/38xxx/CVE-2025-38473.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2025-38473",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2025-04-16T04:51:24.021Z",
"datePublished": "2025-07-28T11:21:34.880Z",
"dateUpdated": "2026-05-11T21:28:41.562Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-05-11T21:28:41.562Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nBluetooth: Fix null-ptr-deref in l2cap_sock_resume_cb()\n\nsyzbot reported null-ptr-deref in l2cap_sock_resume_cb(). [0]\n\nl2cap_sock_resume_cb() has a similar problem that was fixed by commit\n1bff51ea59a9 (\"Bluetooth: fix use-after-free error in lock_sock_nested()\").\n\nSince both l2cap_sock_kill() and l2cap_sock_resume_cb() are executed\nunder l2cap_sock_resume_cb(), we can avoid the issue simply by checking\nif chan->data is NULL.\n\nLet's not access to the killed socket in l2cap_sock_resume_cb().\n\n[0]:\nBUG: KASAN: null-ptr-deref in instrument_atomic_write include/linux/instrumented.h:82 [inline]\nBUG: KASAN: null-ptr-deref in clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]\nBUG: KASAN: null-ptr-deref in l2cap_sock_resume_cb+0xb4/0x17c net/bluetooth/l2cap_sock.c:1711\nWrite of size 8 at addr 0000000000000570 by task kworker/u9:0/52\n\nCPU: 1 UID: 0 PID: 52 Comm: kworker/u9:0 Not tainted 6.16.0-rc4-syzkaller-g7482bb149b9f #0 PREEMPT\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025\nWorkqueue: hci0 hci_rx_work\nCall trace:\n show_stack+0x2c/0x3c arch/arm64/kernel/stacktrace.c:501 (C)\n __dump_stack+0x30/0x40 lib/dump_stack.c:94\n dump_stack_lvl+0xd8/0x12c lib/dump_stack.c:120\n print_report+0x58/0x84 mm/kasan/report.c:524\n kasan_report+0xb0/0x110 mm/kasan/report.c:634\n check_region_inline mm/kasan/generic.c:-1 [inline]\n kasan_check_range+0x264/0x2a4 mm/kasan/generic.c:189\n __kasan_check_write+0x20/0x30 mm/kasan/shadow.c:37\n instrument_atomic_write include/linux/instrumented.h:82 [inline]\n clear_bit include/asm-generic/bitops/instrumented-atomic.h:41 [inline]\n l2cap_sock_resume_cb+0xb4/0x17c net/bluetooth/l2cap_sock.c:1711\n l2cap_security_cfm+0x524/0xea0 net/bluetooth/l2cap_core.c:7357\n hci_auth_cfm include/net/bluetooth/hci_core.h:2092 [inline]\n hci_auth_complete_evt+0x2e8/0xa4c net/bluetooth/hci_event.c:3514\n hci_event_func net/bluetooth/hci_event.c:7511 [inline]\n hci_event_packet+0x650/0xe9c net/bluetooth/hci_event.c:7565\n hci_rx_work+0x320/0xb18 net/bluetooth/hci_core.c:4070\n process_one_work+0x7e8/0x155c kernel/workqueue.c:3238\n process_scheduled_works kernel/workqueue.c:3321 [inline]\n worker_thread+0x958/0xed8 kernel/workqueue.c:3402\n kthread+0x5fc/0x75c kernel/kthread.c:464\n ret_from_fork+0x10/0x20 arch/arm64/kernel/entry.S:847"
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/bluetooth/l2cap_sock.c"
],
"versions": [
{
"version": "d97c899bde330cd1c76c3a162558177563a74362",
"lessThan": "262cd18f5f7ede6a586580cadc5d0799e52e2e7c",
"status": "affected",
"versionType": "git"
},
{
"version": "d97c899bde330cd1c76c3a162558177563a74362",
"lessThan": "2b27b389006623673e8cfff4ce1e119cce640b05",
"status": "affected",
"versionType": "git"
},
{
"version": "d97c899bde330cd1c76c3a162558177563a74362",
"lessThan": "3a4eca2a1859955c65f07a570156bd2d9048ce33",
"status": "affected",
"versionType": "git"
},
{
"version": "d97c899bde330cd1c76c3a162558177563a74362",
"lessThan": "ac3a8147bb24314fb3e84986590148e79f9872ec",
"status": "affected",
"versionType": "git"
},
{
"version": "d97c899bde330cd1c76c3a162558177563a74362",
"lessThan": "c4f16f6b071a74ac7eefe5c28985285cbbe2cd96",
"status": "affected",
"versionType": "git"
},
{
"version": "d97c899bde330cd1c76c3a162558177563a74362",
"lessThan": "b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08",
"status": "affected",
"versionType": "git"
},
{
"version": "d97c899bde330cd1c76c3a162558177563a74362",
"lessThan": "6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0",
"status": "affected",
"versionType": "git"
},
{
"version": "d97c899bde330cd1c76c3a162558177563a74362",
"lessThan": "a0075accbf0d76c2dad1ad3993d2e944505d99a0",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"net/bluetooth/l2cap_sock.c"
],
"versions": [
{
"version": "3.13",
"status": "affected"
},
{
"version": "0",
"lessThan": "3.13",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.4.297",
"lessThanOrEqual": "5.4.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.10.241",
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "5.15.190",
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.1.147",
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.6.100",
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.40",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.15.8",
"lessThanOrEqual": "6.15.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.16",
"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": "3.13",
"versionEndExcluding": "5.4.297"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.13",
"versionEndExcluding": "5.10.241"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.13",
"versionEndExcluding": "5.15.190"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.13",
"versionEndExcluding": "6.1.147"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.13",
"versionEndExcluding": "6.6.100"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.13",
"versionEndExcluding": "6.12.40"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.13",
"versionEndExcluding": "6.15.8"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "3.13",
"versionEndExcluding": "6.16"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/262cd18f5f7ede6a586580cadc5d0799e52e2e7c"
},
{
"url": "https://git.kernel.org/stable/c/2b27b389006623673e8cfff4ce1e119cce640b05"
},
{
"url": "https://git.kernel.org/stable/c/3a4eca2a1859955c65f07a570156bd2d9048ce33"
},
{
"url": "https://git.kernel.org/stable/c/ac3a8147bb24314fb3e84986590148e79f9872ec"
},
{
"url": "https://git.kernel.org/stable/c/c4f16f6b071a74ac7eefe5c28985285cbbe2cd96"
},
{
"url": "https://git.kernel.org/stable/c/b97be7ee8a1cd96b89817cbd64a9f5cc16c17d08"
},
{
"url": "https://git.kernel.org/stable/c/6d63901dcd592a1e3f71d7c6d78f9be5e8d7eef0"
},
{
"url": "https://git.kernel.org/stable/c/a0075accbf0d76c2dad1ad3993d2e944505d99a0"
}
],
"title": "Bluetooth: Fix null-ptr-deref in l2cap_sock_resume_cb()",
"x_generator": {
"engine": "bippy-1.2.0"
}
},
"adp": [
{
"title": "CVE Program Container",
"references": [
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html"
},
{
"url": "https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html"
}
],
"providerMetadata": {
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE",
"dateUpdated": "2025-11-03T17:38:39.105Z"
}
}
]
}
}
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