CVE-2025-38245 (GCVE-0-2025-38245)
Vulnerability from cvelistv5
Published
2025-07-09 10:42
Modified
2025-07-28 04:16
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
atm: Release atm_dev_mutex after removing procfs in atm_dev_deregister().
syzbot reported a warning below during atm_dev_register(). [0]
Before creating a new device and procfs/sysfs for it, atm_dev_register()
looks up a duplicated device by __atm_dev_lookup(). These operations are
done under atm_dev_mutex.
However, when removing a device in atm_dev_deregister(), it releases the
mutex just after removing the device from the list that __atm_dev_lookup()
iterates over.
So, there will be a small race window where the device does not exist on
the device list but procfs/sysfs are still not removed, triggering the
splat.
Let's hold the mutex until procfs/sysfs are removed in
atm_dev_deregister().
[0]:
proc_dir_entry 'atm/atmtcp:0' already registered
WARNING: CPU: 0 PID: 5919 at fs/proc/generic.c:377 proc_register+0x455/0x5f0 fs/proc/generic.c:377
Modules linked in:
CPU: 0 UID: 0 PID: 5919 Comm: syz-executor284 Not tainted 6.16.0-rc2-syzkaller-00047-g52da431bf03b #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:proc_register+0x455/0x5f0 fs/proc/generic.c:377
Code: 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 a2 01 00 00 48 8b 44 24 10 48 c7 c7 20 c0 c2 8b 48 8b b0 d8 00 00 00 e8 0c 02 1c ff 90 <0f> 0b 90 90 48 c7 c7 80 f2 82 8e e8 0b de 23 09 48 8b 4c 24 28 48
RSP: 0018:ffffc9000466fa30 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817ae248
RDX: ffff888026280000 RSI: ffffffff817ae255 RDI: 0000000000000001
RBP: ffff8880232bed48 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: ffff888076ed2140
R13: dffffc0000000000 R14: ffff888078a61340 R15: ffffed100edda444
FS: 00007f38b3b0c6c0(0000) GS:ffff888124753000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f38b3bdf953 CR3: 0000000076d58000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
proc_create_data+0xbe/0x110 fs/proc/generic.c:585
atm_proc_dev_register+0x112/0x1e0 net/atm/proc.c:361
atm_dev_register+0x46d/0x890 net/atm/resources.c:113
atmtcp_create+0x77/0x210 drivers/atm/atmtcp.c:369
atmtcp_attach drivers/atm/atmtcp.c:403 [inline]
atmtcp_ioctl+0x2f9/0xd60 drivers/atm/atmtcp.c:464
do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159
sock_do_ioctl+0x115/0x280 net/socket.c:1190
sock_ioctl+0x227/0x6b0 net/socket.c:1311
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:907 [inline]
__se_sys_ioctl fs/ioctl.c:893 [inline]
__x64_sys_ioctl+0x18b/0x210 fs/ioctl.c:893
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f38b3b74459
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 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 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f38b3b0c198 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f38b3bfe318 RCX: 00007f38b3b74459
RDX: 0000000000000000 RSI: 0000000000006180 RDI: 0000000000000005
RBP: 00007f38b3bfe310 R08: 65732f636f72702f R09: 65732f636f72702f
R10: 65732f636f72702f R11: 0000000000000246 R12: 00007f38b3bcb0ac
R13: 00007f38b3b0c1a0 R14: 0000200000000200 R15: 00007f38b3bcb03b
</TASK>
References
Impacted products
Vendor | Product | Version | ||
---|---|---|---|---|
► | Linux | Linux |
Version: 64bf69ddff7637b7ed7acf9b2a823cc0ee519439 Version: 64bf69ddff7637b7ed7acf9b2a823cc0ee519439 Version: 64bf69ddff7637b7ed7acf9b2a823cc0ee519439 Version: 64bf69ddff7637b7ed7acf9b2a823cc0ee519439 Version: 64bf69ddff7637b7ed7acf9b2a823cc0ee519439 Version: 64bf69ddff7637b7ed7acf9b2a823cc0ee519439 Version: 64bf69ddff7637b7ed7acf9b2a823cc0ee519439 Version: 64bf69ddff7637b7ed7acf9b2a823cc0ee519439 |
|
{ "containers": { "cna": { "affected": [ { "defaultStatus": "unaffected", "product": "Linux", "programFiles": [ "net/atm/resources.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "lessThan": "2a8dcee649d12f69713f2589171a1caf6d4fa439", "status": "affected", "version": "64bf69ddff7637b7ed7acf9b2a823cc0ee519439", "versionType": "git" }, { "lessThan": "4bb1bb438134d9ee6b97cc07289dd7c569092eec", "status": "affected", "version": "64bf69ddff7637b7ed7acf9b2a823cc0ee519439", "versionType": "git" }, { "lessThan": "26248d5d68c865b888d632162abbf8130645622c", "status": "affected", "version": "64bf69ddff7637b7ed7acf9b2a823cc0ee519439", "versionType": "git" }, { "lessThan": "b2e40fcfe1575faaa548f87614006d3fe44c779e", "status": "affected", "version": "64bf69ddff7637b7ed7acf9b2a823cc0ee519439", "versionType": "git" }, { "lessThan": "cabed6ba92a9a8c09da02a3f20e32ecd80989896", "status": "affected", "version": "64bf69ddff7637b7ed7acf9b2a823cc0ee519439", "versionType": "git" }, { "lessThan": "ae539d963a17443ec54cba8a767e4ffa318264f4", "status": "affected", "version": "64bf69ddff7637b7ed7acf9b2a823cc0ee519439", "versionType": "git" }, { "lessThan": "6922f1a048c090f10704bbef4a3a1e81932d2e0a", "status": "affected", "version": "64bf69ddff7637b7ed7acf9b2a823cc0ee519439", "versionType": "git" }, { "lessThan": "a433791aeaea6e84df709e0b9584b9bbe040cd1c", "status": "affected", "version": "64bf69ddff7637b7ed7acf9b2a823cc0ee519439", "versionType": "git" } ] }, { "defaultStatus": "affected", "product": "Linux", "programFiles": [ "net/atm/resources.c" ], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [ { "status": "affected", "version": "2.6.15" }, { "lessThan": "2.6.15", "status": "unaffected", "version": "0", "versionType": "semver" }, { "lessThanOrEqual": "5.4.*", "status": "unaffected", "version": "5.4.296", "versionType": "semver" }, { "lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.240", "versionType": "semver" }, { "lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.187", "versionType": "semver" }, { "lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.143", "versionType": "semver" }, { "lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.96", "versionType": "semver" }, { "lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.36", "versionType": "semver" }, { "lessThanOrEqual": "6.15.*", "status": "unaffected", "version": "6.15.5", "versionType": "semver" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.16", "versionType": "original_commit_for_fix" } ] } ], "cpeApplicability": [ { "nodes": [ { "cpeMatch": [ { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.4.296", "versionStartIncluding": "2.6.15", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.10.240", "versionStartIncluding": "2.6.15", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "5.15.187", "versionStartIncluding": "2.6.15", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.1.143", "versionStartIncluding": "2.6.15", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.6.96", "versionStartIncluding": "2.6.15", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.12.36", "versionStartIncluding": "2.6.15", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.15.5", "versionStartIncluding": "2.6.15", "vulnerable": true }, { "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionEndExcluding": "6.16", "versionStartIncluding": "2.6.15", "vulnerable": true } ], "negate": false, "operator": "OR" } ] } ], "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\natm: Release atm_dev_mutex after removing procfs in atm_dev_deregister().\n\nsyzbot reported a warning below during atm_dev_register(). [0]\n\nBefore creating a new device and procfs/sysfs for it, atm_dev_register()\nlooks up a duplicated device by __atm_dev_lookup(). These operations are\ndone under atm_dev_mutex.\n\nHowever, when removing a device in atm_dev_deregister(), it releases the\nmutex just after removing the device from the list that __atm_dev_lookup()\niterates over.\n\nSo, there will be a small race window where the device does not exist on\nthe device list but procfs/sysfs are still not removed, triggering the\nsplat.\n\nLet\u0027s hold the mutex until procfs/sysfs are removed in\natm_dev_deregister().\n\n[0]:\nproc_dir_entry \u0027atm/atmtcp:0\u0027 already registered\nWARNING: CPU: 0 PID: 5919 at fs/proc/generic.c:377 proc_register+0x455/0x5f0 fs/proc/generic.c:377\nModules linked in:\nCPU: 0 UID: 0 PID: 5919 Comm: syz-executor284 Not tainted 6.16.0-rc2-syzkaller-00047-g52da431bf03b #0 PREEMPT(full)\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025\nRIP: 0010:proc_register+0x455/0x5f0 fs/proc/generic.c:377\nCode: 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 a2 01 00 00 48 8b 44 24 10 48 c7 c7 20 c0 c2 8b 48 8b b0 d8 00 00 00 e8 0c 02 1c ff 90 \u003c0f\u003e 0b 90 90 48 c7 c7 80 f2 82 8e e8 0b de 23 09 48 8b 4c 24 28 48\nRSP: 0018:ffffc9000466fa30 EFLAGS: 00010282\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817ae248\nRDX: ffff888026280000 RSI: ffffffff817ae255 RDI: 0000000000000001\nRBP: ffff8880232bed48 R08: 0000000000000001 R09: 0000000000000000\nR10: 0000000000000000 R11: 0000000000000001 R12: ffff888076ed2140\nR13: dffffc0000000000 R14: ffff888078a61340 R15: ffffed100edda444\nFS: 00007f38b3b0c6c0(0000) GS:ffff888124753000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f38b3bdf953 CR3: 0000000076d58000 CR4: 00000000003526f0\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\nCall Trace:\n \u003cTASK\u003e\n proc_create_data+0xbe/0x110 fs/proc/generic.c:585\n atm_proc_dev_register+0x112/0x1e0 net/atm/proc.c:361\n atm_dev_register+0x46d/0x890 net/atm/resources.c:113\n atmtcp_create+0x77/0x210 drivers/atm/atmtcp.c:369\n atmtcp_attach drivers/atm/atmtcp.c:403 [inline]\n atmtcp_ioctl+0x2f9/0xd60 drivers/atm/atmtcp.c:464\n do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159\n sock_do_ioctl+0x115/0x280 net/socket.c:1190\n sock_ioctl+0x227/0x6b0 net/socket.c:1311\n vfs_ioctl fs/ioctl.c:51 [inline]\n __do_sys_ioctl fs/ioctl.c:907 [inline]\n __se_sys_ioctl fs/ioctl.c:893 [inline]\n __x64_sys_ioctl+0x18b/0x210 fs/ioctl.c:893\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\n do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7f38b3b74459\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 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 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\nRSP: 002b:00007f38b3b0c198 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\nRAX: ffffffffffffffda RBX: 00007f38b3bfe318 RCX: 00007f38b3b74459\nRDX: 0000000000000000 RSI: 0000000000006180 RDI: 0000000000000005\nRBP: 00007f38b3bfe310 R08: 65732f636f72702f R09: 65732f636f72702f\nR10: 65732f636f72702f R11: 0000000000000246 R12: 00007f38b3bcb0ac\nR13: 00007f38b3b0c1a0 R14: 0000200000000200 R15: 00007f38b3bcb03b\n \u003c/TASK\u003e" } ], "providerMetadata": { "dateUpdated": "2025-07-28T04:16:04.621Z", "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux" }, "references": [ { "url": "https://git.kernel.org/stable/c/2a8dcee649d12f69713f2589171a1caf6d4fa439" }, { "url": "https://git.kernel.org/stable/c/4bb1bb438134d9ee6b97cc07289dd7c569092eec" }, { "url": "https://git.kernel.org/stable/c/26248d5d68c865b888d632162abbf8130645622c" }, { "url": "https://git.kernel.org/stable/c/b2e40fcfe1575faaa548f87614006d3fe44c779e" }, { "url": "https://git.kernel.org/stable/c/cabed6ba92a9a8c09da02a3f20e32ecd80989896" }, { "url": "https://git.kernel.org/stable/c/ae539d963a17443ec54cba8a767e4ffa318264f4" }, { "url": "https://git.kernel.org/stable/c/6922f1a048c090f10704bbef4a3a1e81932d2e0a" }, { "url": "https://git.kernel.org/stable/c/a433791aeaea6e84df709e0b9584b9bbe040cd1c" } ], "title": "atm: Release atm_dev_mutex after removing procfs in atm_dev_deregister().", "x_generator": { "engine": "bippy-1.2.0" } } }, "cveMetadata": { "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "assignerShortName": "Linux", "cveId": "CVE-2025-38245", "datePublished": "2025-07-09T10:42:27.263Z", "dateReserved": "2025-04-16T04:51:23.997Z", "dateUpdated": "2025-07-28T04:16:04.621Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "vulnerability-lookup:meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2025-38245\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-07-09T11:15:26.597\",\"lastModified\":\"2025-07-17T17:15:38.150\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\natm: Release atm_dev_mutex after removing procfs in atm_dev_deregister().\\n\\nsyzbot reported a warning below during atm_dev_register(). [0]\\n\\nBefore creating a new device and procfs/sysfs for it, atm_dev_register()\\nlooks up a duplicated device by __atm_dev_lookup(). These operations are\\ndone under atm_dev_mutex.\\n\\nHowever, when removing a device in atm_dev_deregister(), it releases the\\nmutex just after removing the device from the list that __atm_dev_lookup()\\niterates over.\\n\\nSo, there will be a small race window where the device does not exist on\\nthe device list but procfs/sysfs are still not removed, triggering the\\nsplat.\\n\\nLet\u0027s hold the mutex until procfs/sysfs are removed in\\natm_dev_deregister().\\n\\n[0]:\\nproc_dir_entry \u0027atm/atmtcp:0\u0027 already registered\\nWARNING: CPU: 0 PID: 5919 at fs/proc/generic.c:377 proc_register+0x455/0x5f0 fs/proc/generic.c:377\\nModules linked in:\\nCPU: 0 UID: 0 PID: 5919 Comm: syz-executor284 Not tainted 6.16.0-rc2-syzkaller-00047-g52da431bf03b #0 PREEMPT(full)\\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025\\nRIP: 0010:proc_register+0x455/0x5f0 fs/proc/generic.c:377\\nCode: 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 a2 01 00 00 48 8b 44 24 10 48 c7 c7 20 c0 c2 8b 48 8b b0 d8 00 00 00 e8 0c 02 1c ff 90 \u003c0f\u003e 0b 90 90 48 c7 c7 80 f2 82 8e e8 0b de 23 09 48 8b 4c 24 28 48\\nRSP: 0018:ffffc9000466fa30 EFLAGS: 00010282\\nRAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817ae248\\nRDX: ffff888026280000 RSI: ffffffff817ae255 RDI: 0000000000000001\\nRBP: ffff8880232bed48 R08: 0000000000000001 R09: 0000000000000000\\nR10: 0000000000000000 R11: 0000000000000001 R12: ffff888076ed2140\\nR13: dffffc0000000000 R14: ffff888078a61340 R15: ffffed100edda444\\nFS: 00007f38b3b0c6c0(0000) GS:ffff888124753000(0000) knlGS:0000000000000000\\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\\nCR2: 00007f38b3bdf953 CR3: 0000000076d58000 CR4: 00000000003526f0\\nDR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000\\nDR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400\\nCall Trace:\\n \u003cTASK\u003e\\n proc_create_data+0xbe/0x110 fs/proc/generic.c:585\\n atm_proc_dev_register+0x112/0x1e0 net/atm/proc.c:361\\n atm_dev_register+0x46d/0x890 net/atm/resources.c:113\\n atmtcp_create+0x77/0x210 drivers/atm/atmtcp.c:369\\n atmtcp_attach drivers/atm/atmtcp.c:403 [inline]\\n atmtcp_ioctl+0x2f9/0xd60 drivers/atm/atmtcp.c:464\\n do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159\\n sock_do_ioctl+0x115/0x280 net/socket.c:1190\\n sock_ioctl+0x227/0x6b0 net/socket.c:1311\\n vfs_ioctl fs/ioctl.c:51 [inline]\\n __do_sys_ioctl fs/ioctl.c:907 [inline]\\n __se_sys_ioctl fs/ioctl.c:893 [inline]\\n __x64_sys_ioctl+0x18b/0x210 fs/ioctl.c:893\\n do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]\\n do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94\\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\\nRIP: 0033:0x7f38b3b74459\\nCode: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 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 c7 c1 b0 ff ff ff f7 d8 64 89 01 48\\nRSP: 002b:00007f38b3b0c198 EFLAGS: 00000246 ORIG_RAX: 0000000000000010\\nRAX: ffffffffffffffda RBX: 00007f38b3bfe318 RCX: 00007f38b3b74459\\nRDX: 0000000000000000 RSI: 0000000000006180 RDI: 0000000000000005\\nRBP: 00007f38b3bfe310 R08: 65732f636f72702f R09: 65732f636f72702f\\nR10: 65732f636f72702f R11: 0000000000000246 R12: 00007f38b3bcb0ac\\nR13: 00007f38b3b0c1a0 R14: 0000200000000200 R15: 00007f38b3bcb03b\\n \u003c/TASK\u003e\"},{\"lang\":\"es\",\"value\":\"En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: atm: Liberar atm_dev_mutex despu\u00e9s de eliminar procfs en atm_dev_deregister(). syzbot report\u00f3 una advertencia a continuaci\u00f3n durante atm_dev_register(). [0] Antes de crear un nuevo dispositivo y procfs/sysfs para \u00e9l, atm_dev_register() busca un dispositivo duplicado por __atm_dev_lookup(). Estas operaciones se realizan bajo atm_dev_mutex. Sin embargo, al eliminar un dispositivo en atm_dev_deregister(), libera el mutex justo despu\u00e9s de eliminar el dispositivo de la lista que __atm_dev_lookup() itera. Por lo tanto, habr\u00e1 una peque\u00f1a ventana de ejecuci\u00f3n donde el dispositivo no existe en la lista de dispositivos pero los procfs/sysfs a\u00fan no se eliminan, lo que activa el splat. Mantengamos el mutex hasta que se eliminen procfs/sysfs en atm_dev_deregister(). [0]: proc_dir_entry \u0027atm/atmtcp:0\u0027 ya est\u00e1 registrado ADVERTENCIA: CPU: 0 PID: 5919 at fs/proc/generic.c:377 proc_register+0x455/0x5f0 fs/proc/generic.c:377 Modules linked in: CPU: 0 UID: 0 PID: 5919 Comm: syz-executor284 Not tainted 6.16.0-rc2-syzkaller-00047-g52da431bf03b #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:proc_register+0x455/0x5f0 fs/proc/generic.c:377 Code: 48 89 f9 48 c1 e9 03 80 3c 01 00 0f 85 a2 01 00 00 48 8b 44 24 10 48 c7 c7 20 c0 c2 8b 48 8b b0 d8 00 00 00 e8 0c 02 1c ff 90 \u0026lt;0f\u0026gt; 0b 90 90 48 c7 c7 80 f2 82 8e e8 0b de 23 09 48 8b 4c 24 28 48 RSP: 0018:ffffc9000466fa30 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffff817ae248 RDX: ffff888026280000 RSI: ffffffff817ae255 RDI: 0000000000000001 RBP: ffff8880232bed48 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000001 R12: ffff888076ed2140 R13: dffffc0000000000 R14: ffff888078a61340 R15: ffffed100edda444 FS: 00007f38b3b0c6c0(0000) GS:ffff888124753000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f38b3bdf953 CR3: 0000000076d58000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: proc_create_data+0xbe/0x110 fs/proc/generic.c:585 atm_proc_dev_register+0x112/0x1e0 net/atm/proc.c:361 atm_dev_register+0x46d/0x890 net/atm/resources.c:113 atmtcp_create+0x77/0x210 drivers/atm/atmtcp.c:369 atmtcp_attach drivers/atm/atmtcp.c:403 [inline] atmtcp_ioctl+0x2f9/0xd60 drivers/atm/atmtcp.c:464 do_vcc_ioctl+0x12c/0x930 net/atm/ioctl.c:159 sock_do_ioctl+0x115/0x280 net/socket.c:1190 sock_ioctl+0x227/0x6b0 net/socket.c:1311 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl fs/ioctl.c:893 [inline] __x64_sys_ioctl+0x18b/0x210 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f38b3b74459 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 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 \u0026lt;48\u0026gt; 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f38b3b0c198 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f38b3bfe318 RCX: 00007f38b3b74459 RDX: 0000000000000000 RSI: 0000000000006180 RDI: 0000000000000005 RBP: 00007f38b3bfe310 R08: 65732f636f72702f R09: 65732f636f72702f R10: 65732f636f72702f R11: 0000000000000246 R12: 00007f38b3bcb0ac R13: 00007f38b3b0c1a0 R14: 0000200000000200 R15: 00007f38b3bcb03b \"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/26248d5d68c865b888d632162abbf8130645622c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/2a8dcee649d12f69713f2589171a1caf6d4fa439\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4bb1bb438134d9ee6b97cc07289dd7c569092eec\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6922f1a048c090f10704bbef4a3a1e81932d2e0a\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a433791aeaea6e84df709e0b9584b9bbe040cd1c\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/ae539d963a17443ec54cba8a767e4ffa318264f4\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b2e40fcfe1575faaa548f87614006d3fe44c779e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/cabed6ba92a9a8c09da02a3f20e32ecd80989896\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}" } }
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Sightings
Author | Source | Type | Date |
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Nomenclature
- 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.
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