gsd-2024-26638
Vulnerability from gsd
Modified
2024-02-20 06:02
Details
In the Linux kernel, the following vulnerability has been resolved:
nbd: always initialize struct msghdr completely
syzbot complains that msg->msg_get_inq value can be uninitialized [1]
struct msghdr got many new fields recently, we should always make
sure their values is zero by default.
[1]
BUG: KMSAN: uninit-value in tcp_recvmsg+0x686/0xac0 net/ipv4/tcp.c:2571
tcp_recvmsg+0x686/0xac0 net/ipv4/tcp.c:2571
inet_recvmsg+0x131/0x580 net/ipv4/af_inet.c:879
sock_recvmsg_nosec net/socket.c:1044 [inline]
sock_recvmsg+0x12b/0x1e0 net/socket.c:1066
__sock_xmit+0x236/0x5c0 drivers/block/nbd.c:538
nbd_read_reply drivers/block/nbd.c:732 [inline]
recv_work+0x262/0x3100 drivers/block/nbd.c:863
process_one_work kernel/workqueue.c:2627 [inline]
process_scheduled_works+0x104e/0x1e70 kernel/workqueue.c:2700
worker_thread+0xf45/0x1490 kernel/workqueue.c:2781
kthread+0x3ed/0x540 kernel/kthread.c:388
ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242
Local variable msg created at:
__sock_xmit+0x4c/0x5c0 drivers/block/nbd.c:513
nbd_read_reply drivers/block/nbd.c:732 [inline]
recv_work+0x262/0x3100 drivers/block/nbd.c:863
CPU: 1 PID: 7465 Comm: kworker/u5:1 Not tainted 6.7.0-rc7-syzkaller-00041-gf016f7547aee #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023
Workqueue: nbd5-recv recv_work
Aliases
{ "gsd": { "metadata": { "exploitCode": "unknown", "remediation": "unknown", "reportConfidence": "confirmed", "type": "vulnerability" }, "osvSchema": { "aliases": [ "CVE-2024-26638" ], "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: always initialize struct msghdr completely\n\nsyzbot complains that msg-\u003emsg_get_inq value can be uninitialized [1]\n\nstruct msghdr got many new fields recently, we should always make\nsure their values is zero by default.\n\n[1]\n BUG: KMSAN: uninit-value in tcp_recvmsg+0x686/0xac0 net/ipv4/tcp.c:2571\n tcp_recvmsg+0x686/0xac0 net/ipv4/tcp.c:2571\n inet_recvmsg+0x131/0x580 net/ipv4/af_inet.c:879\n sock_recvmsg_nosec net/socket.c:1044 [inline]\n sock_recvmsg+0x12b/0x1e0 net/socket.c:1066\n __sock_xmit+0x236/0x5c0 drivers/block/nbd.c:538\n nbd_read_reply drivers/block/nbd.c:732 [inline]\n recv_work+0x262/0x3100 drivers/block/nbd.c:863\n process_one_work kernel/workqueue.c:2627 [inline]\n process_scheduled_works+0x104e/0x1e70 kernel/workqueue.c:2700\n worker_thread+0xf45/0x1490 kernel/workqueue.c:2781\n kthread+0x3ed/0x540 kernel/kthread.c:388\n ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242\n\nLocal variable msg created at:\n __sock_xmit+0x4c/0x5c0 drivers/block/nbd.c:513\n nbd_read_reply drivers/block/nbd.c:732 [inline]\n recv_work+0x262/0x3100 drivers/block/nbd.c:863\n\nCPU: 1 PID: 7465 Comm: kworker/u5:1 Not tainted 6.7.0-rc7-syzkaller-00041-gf016f7547aee #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023\nWorkqueue: nbd5-recv recv_work", "id": "GSD-2024-26638", "modified": "2024-02-20T06:02:29.163488Z", "schema_version": "1.4.0" } }, "namespaces": { "cve.org": { "CVE_data_meta": { "ASSIGNER": "cve@kernel.org", "ID": "CVE-2024-26638", "STATE": "PUBLIC" }, "affects": { "vendor": { "vendor_data": [ { "product": { "product_data": [ { "product_name": "Linux", "version": { "version_data": [ { "version_affected": "\u003c", "version_name": "f94fd25cb0aa", "version_value": "d9c54763e5cd" }, { "version_value": "not down converted", "x_cve_json_5_version_data": { "defaultStatus": "affected", "versions": [ { "status": "affected", "version": "5.19" }, { "lessThan": "5.19", "status": "unaffected", "version": "0", "versionType": "custom" }, { "lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.76", "versionType": "custom" }, { "lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.15", "versionType": "custom" }, { "lessThanOrEqual": "6.7.*", "status": "unaffected", "version": "6.7.3", "versionType": "custom" }, { "lessThanOrEqual": "*", "status": "unaffected", "version": "6.8", "versionType": "original_commit_for_fix" } ] } } ] } } ] }, "vendor_name": "Linux" } ] } }, "data_format": "MITRE", "data_type": "CVE", "data_version": "4.0", "description": { "description_data": [ { "lang": "eng", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: always initialize struct msghdr completely\n\nsyzbot complains that msg-\u003emsg_get_inq value can be uninitialized [1]\n\nstruct msghdr got many new fields recently, we should always make\nsure their values is zero by default.\n\n[1]\n BUG: KMSAN: uninit-value in tcp_recvmsg+0x686/0xac0 net/ipv4/tcp.c:2571\n tcp_recvmsg+0x686/0xac0 net/ipv4/tcp.c:2571\n inet_recvmsg+0x131/0x580 net/ipv4/af_inet.c:879\n sock_recvmsg_nosec net/socket.c:1044 [inline]\n sock_recvmsg+0x12b/0x1e0 net/socket.c:1066\n __sock_xmit+0x236/0x5c0 drivers/block/nbd.c:538\n nbd_read_reply drivers/block/nbd.c:732 [inline]\n recv_work+0x262/0x3100 drivers/block/nbd.c:863\n process_one_work kernel/workqueue.c:2627 [inline]\n process_scheduled_works+0x104e/0x1e70 kernel/workqueue.c:2700\n worker_thread+0xf45/0x1490 kernel/workqueue.c:2781\n kthread+0x3ed/0x540 kernel/kthread.c:388\n ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242\n\nLocal variable msg created at:\n __sock_xmit+0x4c/0x5c0 drivers/block/nbd.c:513\n nbd_read_reply drivers/block/nbd.c:732 [inline]\n recv_work+0x262/0x3100 drivers/block/nbd.c:863\n\nCPU: 1 PID: 7465 Comm: kworker/u5:1 Not tainted 6.7.0-rc7-syzkaller-00041-gf016f7547aee #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023\nWorkqueue: nbd5-recv recv_work" } ] }, "generator": { "engine": "bippy-8df59b4913de" }, "problemtype": { "problemtype_data": [ { "description": [ { "lang": "eng", "value": "n/a" } ] } ] }, "references": { "reference_data": [ { "name": "https://git.kernel.org/stable/c/d9c54763e5cdbbd3f81868597fe8aca3c96e6387", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/d9c54763e5cdbbd3f81868597fe8aca3c96e6387" }, { "name": "https://git.kernel.org/stable/c/1960f2b534da1e6c65fb96f9e98bda773495f406", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/1960f2b534da1e6c65fb96f9e98bda773495f406" }, { "name": "https://git.kernel.org/stable/c/b0028f333420a65a53a63978522db680b37379dd", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/b0028f333420a65a53a63978522db680b37379dd" }, { "name": "https://git.kernel.org/stable/c/78fbb92af27d0982634116c7a31065f24d092826", "refsource": "MISC", "url": "https://git.kernel.org/stable/c/78fbb92af27d0982634116c7a31065f24d092826" } ] } }, "nvd.nist.gov": { "cve": { "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnbd: always initialize struct msghdr completely\n\nsyzbot complains that msg-\u003emsg_get_inq value can be uninitialized [1]\n\nstruct msghdr got many new fields recently, we should always make\nsure their values is zero by default.\n\n[1]\n BUG: KMSAN: uninit-value in tcp_recvmsg+0x686/0xac0 net/ipv4/tcp.c:2571\n tcp_recvmsg+0x686/0xac0 net/ipv4/tcp.c:2571\n inet_recvmsg+0x131/0x580 net/ipv4/af_inet.c:879\n sock_recvmsg_nosec net/socket.c:1044 [inline]\n sock_recvmsg+0x12b/0x1e0 net/socket.c:1066\n __sock_xmit+0x236/0x5c0 drivers/block/nbd.c:538\n nbd_read_reply drivers/block/nbd.c:732 [inline]\n recv_work+0x262/0x3100 drivers/block/nbd.c:863\n process_one_work kernel/workqueue.c:2627 [inline]\n process_scheduled_works+0x104e/0x1e70 kernel/workqueue.c:2700\n worker_thread+0xf45/0x1490 kernel/workqueue.c:2781\n kthread+0x3ed/0x540 kernel/kthread.c:388\n ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147\n ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242\n\nLocal variable msg created at:\n __sock_xmit+0x4c/0x5c0 drivers/block/nbd.c:513\n nbd_read_reply drivers/block/nbd.c:732 [inline]\n recv_work+0x262/0x3100 drivers/block/nbd.c:863\n\nCPU: 1 PID: 7465 Comm: kworker/u5:1 Not tainted 6.7.0-rc7-syzkaller-00041-gf016f7547aee #0\nHardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023\nWorkqueue: nbd5-recv recv_work" }, { "lang": "es", "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: nbd: siempre inicializa completamente la estructura msghdr syzbot se queja de que el valor msg-\u0026gt;msg_get_inq puede no estar inicializado [1] la estructura msghdr obtuvo muchos campos nuevos recientemente, siempre debemos asegurarnos de que sus valores sean cero por defecto. [1] ERROR: KMSAN: valor uninit en tcp_recvmsg+0x686/0xac0 net/ipv4/tcp.c:2571 tcp_recvmsg+0x686/0xac0 net/ipv4/tcp.c:2571 inet_recvmsg+0x131/0x580 net/ipv4/af_inet. c:879 sock_recvmsg_nosec net/socket.c:1044 [en l\u00ednea] sock_recvmsg+0x12b/0x1e0 net/socket.c:1066 __sock_xmit+0x236/0x5c0 drivers/block/nbd.c:538 nbd_read_reply drivers/block/nbd.c:732 [en l\u00ednea] recv_work+0x262/0x3100 drivers/block/nbd.c:863 Process_one_work kernel/workqueue.c:2627 [en l\u00ednea] Process_scheduled_works+0x104e/0x1e70 kernel/workqueue.c:2700 workqueue.c :2781 kthread+0x3ed/0x540 kernel/kthread.c:388 ret_from_fork+0x66/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:242 Mensaje de variable local creado en: __sock_xmit+0x4c/0x5c0 drivers/block/nbd.c:513 nbd_read_reply drivers/block/nbd.c:732 [en l\u00ednea] recv_work+0x262/0x3100 drivers/block/nbd.c:863 CPU: 1 PID: 7465 Comm : kworker/u5:1 No contaminado 6.7.0-rc7-syzkaller-00041-gf016f7547aee #0 Nombre del hardware: Google Google Compute Engine/Google Compute Engine, BIOS Google 17/11/2023 Cola de trabajo: nbd5-recv recv_work" } ], "id": "CVE-2024-26638", "lastModified": "2024-03-18T12:38:25.490", "metrics": {}, "published": "2024-03-18T11:15:10.720", "references": [ { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1960f2b534da1e6c65fb96f9e98bda773495f406" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/78fbb92af27d0982634116c7a31065f24d092826" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b0028f333420a65a53a63978522db680b37379dd" }, { "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d9c54763e5cdbbd3f81868597fe8aca3c96e6387" } ], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis" } } } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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