CVE-2021-46938
published 2024-02-27CVE-2021-46938: In the Linux kernel, the following vulnerability has been resolved: dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails When loading…
PriorityP339high7.8CVSS 3.1
AVLACLPRLUINSUCHIHAH
EPSS
0.25%
16.2th percentile
In the Linux kernel, the following vulnerability has been resolved:
dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
When loading a device-mapper table for a request-based mapped device,
and the allocation/initialization of the blk_mq_tag_set for the device
fails, a following device remove will cause a double free.
E.g. (dmesg):
device-mapper: core: Cannot initialize queue for request-based dm-mq mapped device
device-mapper: ioctl: unable to set up device queue for new table.
Unable to handle kernel pointer dereference in virtual kernel address space
Failing address: 0305e098835de000 TEID: 0305e098835de803
Fault in home space mode while using kernel ASCE.
AS:000000025efe0007 R3:0000000000000024
Oops: 0038 ilc:3 [#1] SMP
Modules linked in: ... lots of modules ...
Supported: Yes, External
CPU: 0 PID: 7348 Comm: multipathd Kdump: loaded Tainted: G W X 5.3.18-53-default #1 SLE15-SP3
Hardware name: IBM 8561 T01 7I2 (LPAR)
Krnl PSW : 0704e00180000000 000000025e368eca (kfree+0x42/0x330)
R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:2 PM:0 RI:0 EA:3
Krnl GPRS: 000000000000004a 000000025efe5230 c1773200d779968d 0000000000000000
000000025e520270 000000025e8d1b40 0000000000000003 00000007aae10000
000000025e5202a2 0000000000000001 c1773200d779968d 0305e098835de640
00000007a8170000 000003ff80138650 000000025e5202a2 000003e00396faa8
Krnl Code: 000000025e368eb8: c4180041e100 lgrl %r1,25eba50b8
000000025e368ebe: ecba06b93a55 risbg %r11,%r10,6,185,58
#000000025e368ec4: e3b010000008 ag %r11,0(%r1)
>000000025e368eca: e310b0080004 lg %r1,8(%r11)
000000025e368ed0: a7110001 tmll %r1,1
000000025e368ed4: a7740129 brc 7,25e369126
000000025e368ed8: e320b0080004 lg %r2,8(%r11)
000000025e368ede: b904001b lgr %r1,%r11
Call Trace:
[] kfree+0x42/0x330
[] blk_mq_free_tag_set+0x72/0xb8
[] dm_mq_cleanup_mapped_device+0x38/0x50 [dm_mod]
[] free_dev+0x52/0xd0 [dm_mod]
[] __dm_destroy+0x150/0x1d0 [dm_mod]
[] dev_remove+0x162/0x1c0 [dm_mod]
[] ctl_ioctl+0x198/0x478 [dm_mod]
Affected
21 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 5.10.38-1 (bookworm) | linux 5.10.38-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 1c357a1e86a4227a6b6059f2de118ae47659cebc < 8ae0185255eaf05bd66f4215c81e99bf01140fd9 | 8ae0185255eaf05bd66f4215c81e99bf01140fd9 |
| linux | linux | >= 1c357a1e86a4227a6b6059f2de118ae47659cebc < b42c0a33dfdd451d9be62dd5de58c39f2750b6e3 | b42c0a33dfdd451d9be62dd5de58c39f2750b6e3 |
| linux | linux | >= 1c357a1e86a4227a6b6059f2de118ae47659cebc < 772b9f59657665af3b68d24d12b9d172d31f0dfb | 772b9f59657665af3b68d24d12b9d172d31f0dfb |
| linux | linux | >= 1c357a1e86a4227a6b6059f2de118ae47659cebc < a992a283c0b77d0a7c2c348add0e6a21fb1dab67 | a992a283c0b77d0a7c2c348add0e6a21fb1dab67 |
| linux | linux | >= 1c357a1e86a4227a6b6059f2de118ae47659cebc < 1cb02dc76f4c0a2749a02b26469512d6984252e9 | 1cb02dc76f4c0a2749a02b26469512d6984252e9 |
| linux | linux | >= 1c357a1e86a4227a6b6059f2de118ae47659cebc < 6086f957416a6e87236c06079fcaba7a3998aeca | 6086f957416a6e87236c06079fcaba7a3998aeca |
| linux | linux | >= 1c357a1e86a4227a6b6059f2de118ae47659cebc < d757bf4c69cda3c3ab7f775dfabbf5a80e2f6f9d | d757bf4c69cda3c3ab7f775dfabbf5a80e2f6f9d |
| linux | linux | >= 1c357a1e86a4227a6b6059f2de118ae47659cebc < 8e947c8f4a5620df77e43c9c75310dc510250166 | 8e947c8f4a5620df77e43c9c75310dc510250166 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 0 < 5.10.38-1 | 5.10.38-1 |
| linux | linux_kernel | >= 4.10.0 < 4.14.233 | 4.14.233 |
| linux | linux_kernel | >= 4.15.0 < 4.19.191 | 4.19.191 |
| linux | linux_kernel | >= 4.20.0 < 5.4.118 | 5.4.118 |
| linux | linux_kernel | >= 4.6.0 < 4.9.269 | 4.9.269 |
| linux | linux_kernel | >= 5.11.0 < 5.11.20 | 5.11.20 |
| linux | linux_kernel | >= 5.12.0 < 5.12.3 | 5.12.3 |
| linux | linux_kernel | >= 5.5.0 < 5.10.36 | 5.10.36 |
CVSS provenance
nvdv3.17.8HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
osv7.8HIGH
vendor_debian7.8HIGH
vendor_redhat7.8HIGH
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GHSA
GHSA-3f9f-wff5-c5pp: In the Linux kernel, the following vulnerability has been resolved:
dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
Wh
ghsa_unreviewed·2024-02-27
CVE-2021-46938 [HIGH] CWE-415 GHSA-3f9f-wff5-c5pp: In the Linux kernel, the following vulnerability has been resolved:
dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
Wh
In the Linux kernel, the following vulnerability has been resolved:
dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
When loading a device-mapper table for a request-based mapped device,
and the allocation/initialization of the blk_mq_tag_set for the device
fails, a following device remove will cause a double free.
E.g. (dmesg):
device-mapper: core: Cannot initialize queue for request-based dm-mq mapped device
device-mapper: ioctl: unable to set up device queue for new table.
Unable to handle kernel pointer dereference in virtual kernel address space
Failing address: 0305e098835de000 TEID: 0305e098835de803
Fault in home space mode while using kernel ASCE.
AS:000000025efe0007 R3:0000000000000024
Oops: 0038 ilc:3 [#1] SMP
Modules linked in: ... lots of modules
OSV
CVE-2021-46938: In the Linux kernel, the following vulnerability has been resolved: dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails When
osv·2024-02-27·CVSS 7.8
CVE-2021-46938 [HIGH] CVE-2021-46938: In the Linux kernel, the following vulnerability has been resolved: dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails When
In the Linux kernel, the following vulnerability has been resolved: dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails When loading a device-mapper table for a request-based mapped device, and the allocation/initialization of the blk_mq_tag_set for the device fails, a following device remove will cause a double free. E.g. (dmesg): device-mapper: core: Cannot initialize queue for request-based dm-mq mapped device device-mapper: ioctl: unable to set up device queue for new table. Unable to handle kernel pointer dereference in virtual kernel address space Failing address: 0305e098835de000 TEID: 0305e098835de803 Fault in home space mode while using kernel ASCE. AS:000000025efe0007 R3:0000000000000024 Oops: 0038 ilc:3 [#1] SMP Modules linked in: ... lots of modules ..
Red Hat
kernel: dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
vendor_redhat·2024-02-27·CVSS 7.8
CVE-2021-46938 [HIGH] CWE-415 kernel: dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
kernel: dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
In the Linux kernel, the following vulnerability has been resolved:
dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails
When loading a device-mapper table for a request-based mapped device,
and the allocation/initialization of the blk_mq_tag_set for the device
fails, a following device remove will cause a double free.
E.g. (dmesg):
device-mapper: core: Cannot initialize queue for request-based dm-mq mapped device
device-mapper: ioctl: unable to set up device queue for new table.
Unable to handle kernel pointer dereference in virtual kernel address space
Failing address: 0305e098835de000 TEID: 0305e098835de803
Fault in home space mode while using kernel ASCE.
AS:000000025efe0007
Debian
CVE-2021-46938: linux - In the Linux kernel, the following vulnerability has been resolved: dm rq: fix ...
vendor_debian·2021·CVSS 7.8
CVE-2021-46938 [HIGH] CVE-2021-46938: linux - In the Linux kernel, the following vulnerability has been resolved: dm rq: fix ...
In the Linux kernel, the following vulnerability has been resolved: dm rq: fix double free of blk_mq_tag_set in dev remove after table load fails When loading a device-mapper table for a request-based mapped device, and the allocation/initialization of the blk_mq_tag_set for the device fails, a following device remove will cause a double free. E.g. (dmesg): device-mapper: core: Cannot initialize queue for request-based dm-mq mapped device device-mapper: ioctl: unable to set up device queue for new table. Unable to handle kernel pointer dereference in virtual kernel address space Failing address: 0305e098835de000 TEID: 0305e098835de803 Fault in home space mode while using kernel ASCE. AS:000000025efe0007 R3:0000000000000024 Oops: 0038 ilc:3 [#1] SMP Modules linked in: ... lots of modules ..
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/1cb02dc76f4c0a2749a02b26469512d6984252e9https://git.kernel.org/stable/c/6086f957416a6e87236c06079fcaba7a3998aecahttps://git.kernel.org/stable/c/772b9f59657665af3b68d24d12b9d172d31f0dfbhttps://git.kernel.org/stable/c/8ae0185255eaf05bd66f4215c81e99bf01140fd9https://git.kernel.org/stable/c/8e947c8f4a5620df77e43c9c75310dc510250166https://git.kernel.org/stable/c/a992a283c0b77d0a7c2c348add0e6a21fb1dab67https://git.kernel.org/stable/c/b42c0a33dfdd451d9be62dd5de58c39f2750b6e3https://git.kernel.org/stable/c/d757bf4c69cda3c3ab7f775dfabbf5a80e2f6f9dhttps://git.kernel.org/stable/c/1cb02dc76f4c0a2749a02b26469512d6984252e9https://git.kernel.org/stable/c/6086f957416a6e87236c06079fcaba7a3998aecahttps://git.kernel.org/stable/c/772b9f59657665af3b68d24d12b9d172d31f0dfbhttps://git.kernel.org/stable/c/8ae0185255eaf05bd66f4215c81e99bf01140fd9https://git.kernel.org/stable/c/8e947c8f4a5620df77e43c9c75310dc510250166https://git.kernel.org/stable/c/a992a283c0b77d0a7c2c348add0e6a21fb1dab67https://git.kernel.org/stable/c/b42c0a33dfdd451d9be62dd5de58c39f2750b6e3https://git.kernel.org/stable/c/d757bf4c69cda3c3ab7f775dfabbf5a80e2f6f9d
2024-02-27
Published