CVE-2024-41087

CVE Details

Release Date:

2024-07-29

Description

In the Linux kernel, the following vulnerability has been resolved:\nata: libata-core: Fix double free on error\nIf e.g. the ata_port_alloc() call in ata_host_alloc() fails, we will jump\nto the err_out label, which will call devres_release_group().\ndevres_release_group() will trigger a call to ata_host_release().\nata_host_release() calls kfree(host), so executing the kfree(host) in\nata_host_alloc() will lead to a double free:\nkernel BUG at mm/slub.c:553!\nOops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI\nCPU: 11 PID: 599 Comm: (udev-worker) Not tainted 6.10.0-rc5 #47\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014\nRIP: 0010:kfree+0x2cf/0x2f0\nCode: 5d 41 5e 41 5f 5d e9 80 d6 ff ff 4d 89 f1 41 b8 01 00 00 00 48 89 d9 48 89 da\nRSP: 0018:ffffc90000f377f0 EFLAGS: 00010246\nRAX: ffff888112b1f2c0 RBX: ffff888112b1f2c0 RCX: ffff888112b1f320\nRDX: 000000000000400b RSI: ffffffffc02c9de5 RDI: ffff888112b1f2c0\nRBP: ffffc90000f37830 R08: 0000000000000000 R09: 0000000000000000\nR10: ffffc90000f37610 R11: 617461203a736b6e R12: ffffea00044ac780\nR13: ffff888100046400 R14: ffffffffc02c9de5 R15: 0000000000000006\nFS: 00007f2f1cabe980(0000) GS:ffff88813b380000(0000) knlGS:0000000000000000\nCS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007f2f1c3acf75 CR3: 0000000111724000 CR4: 0000000000750ef0\nPKRU: 55555554\nCall Trace:\n\n? __die_body.cold+0x19/0x27\n? die+0x2e/0x50\n? do_trap+0xca/0x110\n? do_error_trap+0x6a/0x90\n? kfree+0x2cf/0x2f0\n? exc_invalid_op+0x50/0x70\n? kfree+0x2cf/0x2f0\n? asm_exc_invalid_op+0x1a/0x20\n? ata_host_alloc+0xf5/0x120 [libata]\n? ata_host_alloc+0xf5/0x120 [libata]\n? kfree+0x2cf/0x2f0\nata_host_alloc+0xf5/0x120 [libata]\nata_host_alloc_pinfo+0x14/0xa0 [libata]\nahci_init_one+0x6c9/0xd20 [ahci]\nEnsure that we will not call kfree(host) twice, by performing the kfree()\nonly if the devres_open_group() call failed.

See more information about CVE-2024-41087 from MITRE CVE dictionary and NIST NVD

CVSS Scoring

NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score:	7.1	CVSS Vector:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Attack Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	High
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 7 (kernel-uek)	ELSA-2024-12610	2024-09-10
Oracle Linux version 7 (kernel-uek-container)	ELSA-2024-12612	2024-09-11
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12610	2024-09-10
Oracle Linux version 8 (kernel-uek)	ELSA-2024-12618	2024-09-12
Oracle Linux version 8 (kernel-uek-container)	ELSA-2024-12612	2024-09-11
Oracle Linux version 9 (kernel-uek)	ELSA-2024-12618	2024-09-12