In the Linux kernel, the following vulnerability has been resolved:
ata: libata-core: Fix null pointer dereference on error
If the ataportalloc() call in atahostalloc() fails, atahostrelease() will get called.
However, the code in atahostrelease() tries to free ata_port struct members unconditionally, which can lead to the following:
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:atahostrelease.cold+0x2f/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 CR2: 0000000000003990 CR3: 00000001122a2000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ? _diebody.cold+0x19/0x27 ? pagefaultoops+0x15a/0x2f0 ? excpagefault+0x7e/0x180 ? asmexcpagefault+0x26/0x30 ? atahostrelease.cold+0x2f/0x6e [libata] ? atahostrelease.cold+0x2f/0x6e [libata] releasenodes+0x35/0xb0 devresreleasegroup+0x113/0x140 atahostalloc+0xed/0x120 [libata] atahostallocpinfo+0x14/0xa0 [libata] ahciinit_one+0x6c9/0xd20 [ahci]
Do not access ata_port struct members unconditionally.
[ { "digest": { "function_hash": "286119884381784771179464831034539190003", "length": 356.0 }, "id": "CVE-2024-41098-114de545", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@221e3b1297e74fdec32d0f572f4dcb2260a0a2af", "target": { "file": "drivers/ata/libata-core.c", "function": "ata_host_release" }, "signature_version": "v1", "signature_type": "Function", "deprecated": false }, { "digest": { "function_hash": "276569002648874312251960722257553231563", "length": 392.0 }, "id": "CVE-2024-41098-33e6fb4f", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@119c97ace2a9ffcf4dc09a23bb057d6c281aff28", "target": { "file": "drivers/ata/libata-core.c", "function": "ata_host_release" }, "signature_version": "v1", "signature_type": "Function", "deprecated": false }, { "digest": { "function_hash": "286119884381784771179464831034539190003", "length": 356.0 }, "id": "CVE-2024-41098-3df50ab6", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@56e62977eaaae3eb7122ee2cf9b720b6703114a9", "target": { "file": "drivers/ata/libata-core.c", "function": "ata_host_release" }, "signature_version": "v1", "signature_type": "Function", "deprecated": false }, { "digest": { "line_hashes": [ "193523475665297261942817778898076008345", "249700014925087645787521246615915577950", "175278652380608605693298632670458951087" ], "threshold": 0.9 }, "id": "CVE-2024-41098-4766f616", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d9c4df80b1b009de1eb77c07e3bb4d45bd212aa5", "target": { "file": "drivers/ata/libata-core.c" }, "signature_version": "v1", "signature_type": "Line", "deprecated": false }, { "digest": { "function_hash": "276569002648874312251960722257553231563", "length": 392.0 }, "id": "CVE-2024-41098-5d1e134d", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5d92c7c566dc76d96e0e19e481d926bbe6631c1e", "target": { "file": "drivers/ata/libata-core.c", "function": "ata_host_release" }, "signature_version": "v1", "signature_type": "Function", "deprecated": false }, { "digest": { "line_hashes": [ "193523475665297261942817778898076008345", "249700014925087645787521246615915577950", "231745545400126605931244482889115537009" ], "threshold": 0.9 }, "id": "CVE-2024-41098-613c4fbc", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8a8ff7e3b736a70d7b7c8764cbcd2724d4079ec8", "target": { "file": "drivers/ata/libata-core.c" }, "signature_version": "v1", "signature_type": "Line", "deprecated": false }, { "digest": { "line_hashes": [ "193523475665297261942817778898076008345", "249700014925087645787521246615915577950", "231745545400126605931244482889115537009" ], "threshold": 0.9 }, "id": "CVE-2024-41098-61e04e10", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@119c97ace2a9ffcf4dc09a23bb057d6c281aff28", "target": { "file": "drivers/ata/libata-core.c" }, "signature_version": "v1", "signature_type": "Line", "deprecated": false }, { "digest": { "line_hashes": [ "193523475665297261942817778898076008345", "249700014925087645787521246615915577950", "175278652380608605693298632670458951087" ], "threshold": 0.9 }, "id": "CVE-2024-41098-79fc3484", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0f0d37c154bb108730c90a91aa31e3170e827962", "target": { "file": "drivers/ata/libata-core.c" }, "signature_version": "v1", "signature_type": "Line", "deprecated": false }, { "digest": { "line_hashes": [ "193523475665297261942817778898076008345", "249700014925087645787521246615915577950", "175278652380608605693298632670458951087" ], "threshold": 0.9 }, "id": "CVE-2024-41098-97593ae7", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@56e62977eaaae3eb7122ee2cf9b720b6703114a9", "target": { "file": "drivers/ata/libata-core.c" }, "signature_version": "v1", "signature_type": "Line", "deprecated": false }, { "digest": { "function_hash": "276569002648874312251960722257553231563", "length": 392.0 }, "id": "CVE-2024-41098-a3a25b94", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@8a8ff7e3b736a70d7b7c8764cbcd2724d4079ec8", "target": { "file": "drivers/ata/libata-core.c", "function": "ata_host_release" }, "signature_version": "v1", "signature_type": "Function", "deprecated": false }, { "digest": { "line_hashes": [ "193523475665297261942817778898076008345", "249700014925087645787521246615915577950", "175278652380608605693298632670458951087" ], "threshold": 0.9 }, "id": "CVE-2024-41098-a7bc538e", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@221e3b1297e74fdec32d0f572f4dcb2260a0a2af", "target": { "file": "drivers/ata/libata-core.c" }, "signature_version": "v1", "signature_type": "Line", "deprecated": false }, { "digest": { "line_hashes": [ "193523475665297261942817778898076008345", "249700014925087645787521246615915577950", "175278652380608605693298632670458951087" ], "threshold": 0.9 }, "id": "CVE-2024-41098-abc12f86", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e83405e75d90694ee6a5d898f7f0473ac2686054", "target": { "file": "drivers/ata/libata-core.c" }, "signature_version": "v1", "signature_type": "Line", "deprecated": false }, { "digest": { "function_hash": "286119884381784771179464831034539190003", "length": 356.0 }, "id": "CVE-2024-41098-bf366ba1", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@e83405e75d90694ee6a5d898f7f0473ac2686054", "target": { "file": "drivers/ata/libata-core.c", "function": "ata_host_release" }, "signature_version": "v1", "signature_type": "Function", "deprecated": false }, { "digest": { "function_hash": "286119884381784771179464831034539190003", "length": 356.0 }, "id": "CVE-2024-41098-c15a7bbb", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@d9c4df80b1b009de1eb77c07e3bb4d45bd212aa5", "target": { "file": "drivers/ata/libata-core.c", "function": "ata_host_release" }, "signature_version": "v1", "signature_type": "Function", "deprecated": false }, { "digest": { "line_hashes": [ "193523475665297261942817778898076008345", "249700014925087645787521246615915577950", "231745545400126605931244482889115537009" ], "threshold": 0.9 }, "id": "CVE-2024-41098-cc4e159c", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@5d92c7c566dc76d96e0e19e481d926bbe6631c1e", "target": { "file": "drivers/ata/libata-core.c" }, "signature_version": "v1", "signature_type": "Line", "deprecated": false }, { "digest": { "function_hash": "286119884381784771179464831034539190003", "length": 356.0 }, "id": "CVE-2024-41098-fa8c287e", "source": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git@0f0d37c154bb108730c90a91aa31e3170e827962", "target": { "file": "drivers/ata/libata-core.c", "function": "ata_host_release" }, "signature_version": "v1", "signature_type": "Function", "deprecated": false } ]