CVE-2021-47576
- Source
- https://cve.org/CVERecord?id=CVE-2021-47576
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47576.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2021-47576
- Downstream
- Related
- Published
- 2024-06-19T15:15:52.117Z
- Modified
- 2026-03-10T23:51:42.350880Z
- Severity
-
- 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
scsi: scsidebug: Sanity check block descriptor length in respmode_select()
In respmodeselect() sanity check the block descriptor len to avoid UAF.
BUG: KASAN: use-after-free in respmodeselect+0xa4c/0xb40 drivers/scsi/scsi_debug.c:2509 Read of size 1 at addr ffff888026670f50 by task scsicmd/15032
CPU: 1 PID: 15032 Comm: scsicmd Not tainted 5.15.0-01d0625 #15 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Call Trace: <TASK> dumpstacklvl+0x89/0xb5 lib/dumpstack.c:107 printaddressdescription.constprop.9+0x28/0x160 mm/kasan/report.c:257 kasanreport.cold.14+0x7d/0x117 mm/kasan/report.c:443 __asanreportload1_noabort+0x14/0x20 mm/kasan/reportgeneric.c:306 respmodeselect+0xa4c/0xb40 drivers/scsi/scsidebug.c:2509 scheduleresp+0x4af/0x1a10 drivers/scsi/scsidebug.c:5483 scsidebugqueuecommand+0x8c9/0x1e70 drivers/scsi/scsidebug.c:7537 scsiqueuerq+0x16b4/0x2d10 drivers/scsi/scsilib.c:1521 blkmqdispatchrqlist+0xb9b/0x2700 block/blk-mq.c:1640 __blkmqscheddispatchrequests+0x28f/0x590 block/blk-mq-sched.c:325 blkmqscheddispatchrequests+0x105/0x190 block/blk-mq-sched.c:358 __blkmqrunhwqueue+0xe5/0x150 block/blk-mq.c:1762 __blkmqdelay_runhwqueue+0x4f8/0x5c0 block/blk-mq.c:1839 blkmqrunhwqueue+0x18d/0x350 block/blk-mq.c:1891 blkmqschedinsertrequest+0x3db/0x4e0 block/blk-mq-sched.c:474 blkexecuterqnowait+0x16b/0x1c0 block/blk-exec.c:63 sgcommonwrite.isra.18+0xeb3/0x2000 drivers/scsi/sg.c:837 sgnewwrite.isra.19+0x570/0x8c0 drivers/scsi/sg.c:775 sgioctlcommon+0x14d6/0x2710 drivers/scsi/sg.c:941 sgioctl+0xa2/0x180 drivers/scsi/sg.c:1166 _x64sysioctl+0x19d/0x220 fs/ioctl.c:52 dosyscall64+0x3a/0x80 arch/x86/entry/common.c:50 entrySYSCALL64afterhwframe+0x44/0xae arch/x86/entry/entry64.S:113
- References
-
- https://git.kernel.org/stable/c/adcecd50da6cab7b4957cba0606771dcc846c5a9
- https://git.kernel.org/stable/c/b847ecff850719c46c95acd25a0d555dfd16e10d
- https://git.kernel.org/stable/c/dfc3fff63793c571147930b13c0f8c689c4281ac
- https://git.kernel.org/stable/c/e0a2c28da11e2c2b963fc01d50acbf03045ac732
- https://git.kernel.org/stable/c/04181973c38f3d6a353f9246dcf7fee08024fd9e
- https://git.kernel.org/stable/c/90491283b4064220682e4b0687d07b05df01e3bf
- https://git.kernel.org/stable/c/a9078e791426c2cbbdf28a320c3670f6e0a611e6
Affected packages
Git /
Database specific
unresolved_ranges
[
{
"events": [
{
"introduced": "0"
},
{
"fixed": "4.9.294"
}
]
},
{
"events": [
{
"introduced": "4.10"
},
{
"fixed": "4.14.259"
}
]
},
{
"events": [
{
"introduced": "4.15"
},
{
"fixed": "4.19.222"
}
]
},
{
"events": [
{
"introduced": "4.20"
},
{
"fixed": "5.4.168"
}
]
},
{
"events": [
{
"introduced": "5.5"
},
{
"fixed": "5.10.88"
}
]
},
{
"events": [
{
"introduced": "5.11"
},
{
"fixed": "5.15.11"
}
]
}
]
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-47576.json"