| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-41087: ata: libata-core: Fix double free on error |
| |
| 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. |
| |
| The Linux kernel CVE team has assigned CVE-2024-41087 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.17 with commit dafd6c496381c1cd1f5ba9ad953e810bdcc931bc and fixed in 4.19.317 with commit 290073b2b557e4dc21ee74a1e403d9ae79e393a2 |
| Issue introduced in 4.17 with commit dafd6c496381c1cd1f5ba9ad953e810bdcc931bc and fixed in 5.4.279 with commit 56f1c7e290cd6c69c948fcd2e2a49e6a637ec38f |
| Issue introduced in 4.17 with commit dafd6c496381c1cd1f5ba9ad953e810bdcc931bc and fixed in 5.10.221 with commit 010de9acbea58fbcbda08e3793d6262086a493fe |
| Issue introduced in 4.17 with commit dafd6c496381c1cd1f5ba9ad953e810bdcc931bc and fixed in 5.15.162 with commit 5dde5f8b790274723640d29a07c5a97d57d62047 |
| Issue introduced in 4.17 with commit dafd6c496381c1cd1f5ba9ad953e810bdcc931bc and fixed in 6.1.97 with commit 702c1edbafb2e6f9d20f6d391273b5be09d366a5 |
| Issue introduced in 4.17 with commit dafd6c496381c1cd1f5ba9ad953e810bdcc931bc and fixed in 6.6.37 with commit 062e256516d7db5e7dcdef117f52025cd5c456e3 |
| Issue introduced in 4.17 with commit dafd6c496381c1cd1f5ba9ad953e810bdcc931bc and fixed in 6.9.8 with commit 8106da4d88bbaed809e023cc8014b766223d6e76 |
| Issue introduced in 4.17 with commit dafd6c496381c1cd1f5ba9ad953e810bdcc931bc and fixed in 6.10 with commit ab9e0c529eb7cafebdd31fe1644524e80a48b05d |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-41087 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/ata/libata-core.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/290073b2b557e4dc21ee74a1e403d9ae79e393a2 |
| https://git.kernel.org/stable/c/56f1c7e290cd6c69c948fcd2e2a49e6a637ec38f |
| https://git.kernel.org/stable/c/010de9acbea58fbcbda08e3793d6262086a493fe |
| https://git.kernel.org/stable/c/5dde5f8b790274723640d29a07c5a97d57d62047 |
| https://git.kernel.org/stable/c/702c1edbafb2e6f9d20f6d391273b5be09d366a5 |
| https://git.kernel.org/stable/c/062e256516d7db5e7dcdef117f52025cd5c456e3 |
| https://git.kernel.org/stable/c/8106da4d88bbaed809e023cc8014b766223d6e76 |
| https://git.kernel.org/stable/c/ab9e0c529eb7cafebdd31fe1644524e80a48b05d |
