Description

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: [<000000025e368eca>] kfree+0x42/0x330 [<000000025e5202a2>] blk_mq_free_tag_set+0x72/0xb8 [<000003ff801316a8>] dm_mq_cleanup_mapped_device+0x38/0x50 [dm_mod] [<000003ff80120082>] free_dev+0x52/0xd0 [dm_mod] [<000003ff801233f0>] __dm_destroy+0x150/0x1d0 [dm_mod] [<000003ff8012bb9a>] dev_remove+0x162/0x1c0 [dm_mod] [<000003ff8012a988>] ctl_ioctl+0x198/0x478 [dm_mod] [<000003ff8012ac8a>] dm_ctl_ioctl+0x22/0x38 [dm_mod] [<000000025e3b11ee>] ksys_ioctl+0xbe/0xe0 [<000000025e3b127a>] __s390x_sys_ioctl+0x2a/0x40 [<000000025e8c15ac>] system_call+0xd8/0x2c8 Last Breaking-Event-Address: [<000000025e52029c>] blk_mq_free_tag_set+0x6c/0xb8 Kernel panic - not syncing: Fatal exception: panic_on_oops When allocation/initialization of the blk_mq_tag_set fails in dm_mq_init_request_queue(), it is uninitialized/freed, but the pointer is not reset to NULL; so when dev_remove() later gets into dm_mq_cleanup_mapped_device() it sees the pointer and tries to uninitialize and free it again. Fix this by setting the pointer to NULL in dm_mq_init_request_queue() error-handling. Also set it to NULL in dm_mq_cleanup_mapped_device().

Metrics

 

CVSS Version 4.0 CVSS Version 3.x CVSS Version 2.0

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CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score:  7.8 HIGH

Vector:  CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

NIST: NVD

Base Score: N/A

NVD assessment not yet provided.

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Hyperlink	Resource
https://git.kernel.org/stable/c/1cb02dc76f4c0a2749a02b26469512d6984252e9	Patch
https://git.kernel.org/stable/c/6086f957416a6e87236c06079fcaba7a3998aeca	Patch
https://git.kernel.org/stable/c/772b9f59657665af3b68d24d12b9d172d31f0dfb	Patch
https://git.kernel.org/stable/c/8ae0185255eaf05bd66f4215c81e99bf01140fd9	Patch
https://git.kernel.org/stable/c/8e947c8f4a5620df77e43c9c75310dc510250166	Patch
https://git.kernel.org/stable/c/a992a283c0b77d0a7c2c348add0e6a21fb1dab67	Patch
https://git.kernel.org/stable/c/b42c0a33dfdd451d9be62dd5de58c39f2750b6e3	Patch
https://git.kernel.org/stable/c/d757bf4c69cda3c3ab7f775dfabbf5a80e2f6f9d	Patch

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-415	Double Free	NIST

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Change History

4 change records found show changes

CVE Modified by kernel.org 5/28/2024 4:15:26 PM

Action	Type	Old Value	New Value

CVE Modified by kernel.org 5/14/2024 5:45:56 AM

Action	Type	Old Value	New Value

Initial Analysis by NIST 4/10/2024 3:20:55 PM

Action	Type	Old Value	New Value
Added	CPE Configuration		Record truncated, showing 500 of 771 characters. View Entire Change Record OR *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.6.0 up to (excluding) 4.9.269 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.10.0 up to (excluding) 4.14.233 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.15.0 up to (excluding) 4.19.191 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versions from (including) 4.20.0 up to (excluding) 5.4.118 *cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* versi
Added	CVSS V3.1		NIST AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Added	CWE		NIST CWE-415
Changed	Reference Type	https://git.kernel.org/stable/c/1cb02dc76f4c0a2749a02b26469512d6984252e9 No Types Assigned	https://git.kernel.org/stable/c/1cb02dc76f4c0a2749a02b26469512d6984252e9 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/6086f957416a6e87236c06079fcaba7a3998aeca No Types Assigned	https://git.kernel.org/stable/c/6086f957416a6e87236c06079fcaba7a3998aeca Patch
Changed	Reference Type	https://git.kernel.org/stable/c/772b9f59657665af3b68d24d12b9d172d31f0dfb No Types Assigned	https://git.kernel.org/stable/c/772b9f59657665af3b68d24d12b9d172d31f0dfb Patch
Changed	Reference Type	https://git.kernel.org/stable/c/8ae0185255eaf05bd66f4215c81e99bf01140fd9 No Types Assigned	https://git.kernel.org/stable/c/8ae0185255eaf05bd66f4215c81e99bf01140fd9 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/8e947c8f4a5620df77e43c9c75310dc510250166 No Types Assigned	https://git.kernel.org/stable/c/8e947c8f4a5620df77e43c9c75310dc510250166 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/a992a283c0b77d0a7c2c348add0e6a21fb1dab67 No Types Assigned	https://git.kernel.org/stable/c/a992a283c0b77d0a7c2c348add0e6a21fb1dab67 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/b42c0a33dfdd451d9be62dd5de58c39f2750b6e3 No Types Assigned	https://git.kernel.org/stable/c/b42c0a33dfdd451d9be62dd5de58c39f2750b6e3 Patch
Changed	Reference Type	https://git.kernel.org/stable/c/d757bf4c69cda3c3ab7f775dfabbf5a80e2f6f9d No Types Assigned	https://git.kernel.org/stable/c/d757bf4c69cda3c3ab7f775dfabbf5a80e2f6f9d Patch

New CVE Received by NIST 2/27/2024 2:04:05 PM

Action	Type	Old Value	New Value
Added	Description		Record truncated, showing 500 of 3199 characters. View Entire Change Record 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 queu
Added	Reference		Linux https://git.kernel.org/stable/c/1cb02dc76f4c0a2749a02b26469512d6984252e9 [No types assigned]
Added	Reference		Linux https://git.kernel.org/stable/c/6086f957416a6e87236c06079fcaba7a3998aeca [No types assigned]
Added	Reference		Linux https://git.kernel.org/stable/c/772b9f59657665af3b68d24d12b9d172d31f0dfb [No types assigned]
Added	Reference		Linux https://git.kernel.org/stable/c/8ae0185255eaf05bd66f4215c81e99bf01140fd9 [No types assigned]
Added	Reference		Linux https://git.kernel.org/stable/c/8e947c8f4a5620df77e43c9c75310dc510250166 [No types assigned]
Added	Reference		Linux https://git.kernel.org/stable/c/a992a283c0b77d0a7c2c348add0e6a21fb1dab67 [No types assigned]
Added	Reference		Linux https://git.kernel.org/stable/c/b42c0a33dfdd451d9be62dd5de58c39f2750b6e3 [No types assigned]
Added	Reference		Linux https://git.kernel.org/stable/c/d757bf4c69cda3c3ab7f775dfabbf5a80e2f6f9d [No types assigned]