CVE-2024-41087

ata: libata-core: Fix double free on error

State: Published
Severity: 7.8 High
Published: Jul 29, 2024
Updated: Aug 5, 2026
Reserved: Jul 12, 2024

Description

In the Linux kernel, the following vulnerability has been resolved:

ata: libata-core: Fix double free on error

If e.g. the ata_port_alloc() call in ata_host_alloc() fails, we will jump to the err_out label, which will call devres_release_group(). devres_release_group() will trigger a call to ata_host_release(). ata_host_release() calls kfree(host), so executing the kfree(host) in ata_host_alloc() will lead to a double free:

kernel BUG at mm/slub.c:553! Oops: invalid opcode: 0000 [#1] PREEMPT SMP NOPTI CPU: 11 PID: 599 Comm: (udev-worker) Not tainted 6.10.0-rc5 #47 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.3-2.fc40 04/01/2014 RIP: 0010:kfree+0x2cf/0x2f0 Code: 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 RSP: 0018:ffffc90000f377f0 EFLAGS: 00010246 RAX: ffff888112b1f2c0 RBX: ffff888112b1f2c0 RCX: ffff888112b1f320 RDX: 000000000000400b RSI: ffffffffc02c9de5 RDI: ffff888112b1f2c0 RBP: ffffc90000f37830 R08: 0000000000000000 R09: 0000000000000000 R10: ffffc90000f37610 R11: 617461203a736b6e R12: ffffea00044ac780 R13: ffff888100046400 R14: ffffffffc02c9de5 R15: 0000000000000006 FS: 00007f2f1cabe980(0000) GS:ffff88813b380000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2f1c3acf75 CR3: 0000000111724000 CR4: 0000000000750ef0 PKRU: 55555554 Call Trace: <TASK> ? __die_body.cold+0x19/0x27 ? die+0x2e/0x50 ? do_trap+0xca/0x110 ? do_error_trap+0x6a/0x90 ? kfree+0x2cf/0x2f0 ? exc_invalid_op+0x50/0x70 ? kfree+0x2cf/0x2f0 ? asm_exc_invalid_op+0x1a/0x20 ? ata_host_alloc+0xf5/0x120 [libata] ? ata_host_alloc+0xf5/0x120 [libata] ? kfree+0x2cf/0x2f0 ata_host_alloc+0xf5/0x120 [libata] ata_host_alloc_pinfo+0x14/0xa0 [libata] ahci_init_one+0x6c9/0xd20 [ahci]

Ensure that we will not call kfree(host) twice, by performing the kfree() only if the devres_open_group() call failed.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 290073b2b557e4dc21ee74a1e403d9ae79e393a2Affected dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 56f1c7e290cd6c69c948fcd2e2a49e6a637ec38fAffected dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 010de9acbea58fbcbda08e3793d6262086a493feAffected dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 5dde5f8b790274723640d29a07c5a97d57d62047Affected dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 702c1edbafb2e6f9d20f6d391273b5be09d366a5Affected dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 062e256516d7db5e7dcdef117f52025cd5c456e3Affected dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 8106da4d88bbaed809e023cc8014b766223d6e76Affected dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before ab9e0c529eb7cafebdd31fe1644524e80a48b05dAffected
LinuxLinux	4.17Affected before 4.17Not affected 4.19.317 through 4.19.Not affected 5.4.279 through 5.4.Not affected 5.10.221 through 5.10.Not affected 5.15.162 through 5.15.Not affected 6.1.97 through 6.1.Not affected 6.6.37 through 6.6.Not affected 6.9.8 through 6.9.*Not affected 6.10 and laterNot affected

Product

Versions

LinuxLinux

dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 290073b2b557e4dc21ee74a1e403d9ae79e393a2Affected
dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 56f1c7e290cd6c69c948fcd2e2a49e6a637ec38fAffected
dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 010de9acbea58fbcbda08e3793d6262086a493feAffected
dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 5dde5f8b790274723640d29a07c5a97d57d62047Affected
dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 702c1edbafb2e6f9d20f6d391273b5be09d366a5Affected
dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 062e256516d7db5e7dcdef117f52025cd5c456e3Affected
dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before 8106da4d88bbaed809e023cc8014b766223d6e76Affected
dafd6c496381c1cd1f5ba9ad953e810bdcc931bc to before ab9e0c529eb7cafebdd31fe1644524e80a48b05dAffected

LinuxLinux

4.17Affected
before 4.17Not affected
4.19.317 through 4.19.*Not affected
5.4.279 through 5.4.*Not affected
5.10.221 through 5.10.*Not affected
5.15.162 through 5.15.*Not affected
6.1.97 through 6.1.*Not affected
6.6.37 through 6.6.*Not affected
6.9.8 through 6.9.*Not affected
6.10 and laterNot affected

References

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