Informazioni sul CVE-2024-41098

ata: libata-core: Fix null pointer dereference on error

CWE ID: N/A

Base Score (CVSS): N/A

CVE: CVE-2024-41098

Descrizione: “The Linux kernel has resolved a vulnerability in the ata module: ata: libata-core: Null pointer dereference on error when calling ata_port_alloc() If ata_host_alloc() fails, ata_host_release() will be called. However, the code in ata_host_release() attempts to free ata_port struct members unconditionally, which can lead to a bug: BUG: unable to handle page fault for address: 0000000000003990 PGD 0 P4D 0 Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI CPU: 10 PID: 594 Comm: (udev-worker) Not tainted 6.10.0-rc5 #44 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014 RIP: 0010:ata_host_release.cold+0x0f/0x6e [libata] Code: e4 4d 63 f4 44 89 e2 48 c7 c6 90 ad 32 c0 48 c7 c7 d0 70 33 c0 49 83 c6 0e 41 RSP: 0018:ffffc90000ebb968 EFLAGS: 00010246 RAX: 0000000000000041 RBX: ffff88810fb52e78 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88813b3218c0 RDI: ffff88813b3218c0 RBP: ffff88810fb52e40 R08: 0000000000000000 R09: 6c65725f74736f68 R10: ffffc90000ebb738 R11: 73692033203a746e R12: 0000000000000004 R13: 0000000000000000 R14: 0000000000000011 R15: 0000000000000006 FS: 00007f6cc55b9980(0000) GS:ffff88813b300000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 RAX: 0000000000000041 RBX: ffff88810fb52e78 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffff88813b3218c0 RDI: ffff88813b3218c0 RBP: ffff88810fb52e40 R08: 0000000000000000 R09: 6c65725f74736f68 R10: ffffc90000ebb738 R11: 73692033203a746e R12: 0000000000000004 R13: 0000000000000000 R14: 0000000000000011 R15: 0000000000000006 “` **Important:** This vulnerability is likely related to the `ata_port_alloc` function. It’s crucial to investigate the code that uses this function to understand the root cause of the bug and implement a fix. The `ata_host_release` call is also a potential issue, as it could be triggered by unexpected conditions.

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Punteggio Base (calcolato da AziendaSicura): 0.0 (None)

Riassunto: .

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  • Linux – Linux
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Produttore:Linux
Prodotto: Linux
Anno: 2024
CWE:
CVSS: 0.0

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