CVSS: 4.4EPSS: 0%CPEs: 7EXPL: 0CVE-2024-39471 – drm/amdgpu: add error handle to avoid out-of-bounds
https://notcve.org/view.php?id=CVE-2024-39471
In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu: add error handle to avoid out-of-bounds if the sdma_v4_0_irq_id_to_seq return -EINVAL, the process should be stop to avoid out-of-bounds read, so directly return -EINVAL. • https://git.kernel.org/stable/c/5594971e02764aa1c8210ffb838cb4e7897716e8 https://git.kernel.org/stable/c/8112fa72b7f139052843ff484130d6f97e9f052f https://git.kernel.org/stable/c/ea906e9ac61e3152bef63597f2d9f4a812fc346a https://git.kernel.org/stable/c/011552f29f20842c9a7a21bffe1f6a2d6457ba46 https://git.kernel.org/stable/c/5b0a3dc3e87821acb80e841b464d335aff242691 https://git.kernel.org/stable/c/0964c84b93db7fbf74f357c1e20957850e092db3 https://git.kernel.org/stable/c/8b2faf1a4f3b6c748c0da36cda865a226534d520 https://access.redhat.com/security/cve/CVE-2024-39471 • CWE-125: Out-of-bounds Read •
CVSS: -EPSS: 0%CPEs: 8EXPL: 0CVE-2024-39469 – nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors
https://notcve.org/view.php?id=CVE-2024-39469
In the Linux kernel, the following vulnerability has been resolved: nilfs2: fix nilfs_empty_dir() misjudgment and long loop on I/O errors The error handling in nilfs_empty_dir() when a directory folio/page read fails is incorrect, as in the old ext2 implementation, and if the folio/page cannot be read or nilfs_check_folio() fails, it will falsely determine the directory as empty and corrupt the file system. In addition, since nilfs_empty_dir() does not immediately return on a failed folio/page read, but continues to loop, this can cause a long loop with I/O if i_size of the directory's inode is also corrupted, causing the log writer thread to wait and hang, as reported by syzbot. Fix these issues by making nilfs_empty_dir() immediately return a false value (0) if it fails to get a directory folio/page. • https://git.kernel.org/stable/c/2ba466d74ed74f073257f86e61519cb8f8f46184 https://git.kernel.org/stable/c/2ac8a2fe22bdde9eecce2a42cf5cab79333fb428 https://git.kernel.org/stable/c/405b71f1251e5ae865f53bd27c45114e6c83bee3 https://git.kernel.org/stable/c/c77ad608df6c091fe64ecb91f41ef7cb465587f1 https://git.kernel.org/stable/c/11a2edb70356a2202dcb7c9c189c8356ab4752cd https://git.kernel.org/stable/c/129dcd3e7d036218db3f59c82d82004b9539ed82 https://git.kernel.org/stable/c/d18b05eda7fa77f02114f15b02c009f28ee42346 https://git.kernel.org/stable/c/59f14875a96ef93f05b82ad3c980605f2 •
CVSS: -EPSS: 0%CPEs: 6EXPL: 0CVE-2024-39468 – smb: client: fix deadlock in smb2_find_smb_tcon()
https://notcve.org/view.php?id=CVE-2024-39468
In the Linux kernel, the following vulnerability has been resolved: smb: client: fix deadlock in smb2_find_smb_tcon() Unlock cifs_tcp_ses_lock before calling cifs_put_smb_ses() to avoid such deadlock. • https://git.kernel.org/stable/c/b055752675cd1d1db4ac9c2750db3dc3e89ea261 https://git.kernel.org/stable/c/21f5dd36e655d25a7b45b61c1e537198b671f720 https://git.kernel.org/stable/c/b09b556e48968317887a11243a5331a7bc00ece5 https://git.kernel.org/stable/c/225de871ddf994f69a57f035709cad9c0ab8615a https://git.kernel.org/stable/c/8d0f5f1ccf675454a833a573c53830a49b7d1a47 https://git.kernel.org/stable/c/02c418774f76a0a36a6195c9dbf8971eb4130a15 •
CVSS: -EPSS: 0%CPEs: 7EXPL: 0CVE-2024-39467 – f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode()
https://notcve.org/view.php?id=CVE-2024-39467
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to do sanity check on i_xattr_nid in sanity_check_inode() syzbot reports a kernel bug as below: F2FS-fs (loop0): Mounted with checkpoint version = 48b305e4 ================================================================== BUG: KASAN: slab-out-of-bounds in f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline] BUG: KASAN: slab-out-of-bounds in current_nat_addr fs/f2fs/node.h:213 [inline] BUG: KASAN: slab-out-of-bounds in f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 Read of size 1 at addr ffff88807a58c76c by task syz-executor280/5076 CPU: 1 PID: 5076 Comm: syz-executor280 Not tainted 6.9.0-rc5-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x241/0x360 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0x169/0x550 mm/kasan/report.c:488 kasan_report+0x143/0x180 mm/kasan/report.c:601 f2fs_test_bit fs/f2fs/f2fs.h:2933 [inline] current_nat_addr fs/f2fs/node.h:213 [inline] f2fs_get_node_info+0xece/0x1200 fs/f2fs/node.c:600 f2fs_xattr_fiemap fs/f2fs/data.c:1848 [inline] f2fs_fiemap+0x55d/0x1ee0 fs/f2fs/data.c:1925 ioctl_fiemap fs/ioctl.c:220 [inline] do_vfs_ioctl+0x1c07/0x2e50 fs/ioctl.c:838 __do_sys_ioctl fs/ioctl.c:902 [inline] __se_sys_ioctl+0x81/0x170 fs/ioctl.c:890 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf5/0x240 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f The root cause is we missed to do sanity check on i_xattr_nid during f2fs_iget(), so that in fiemap() path, current_nat_addr() will access nat_bitmap w/ offset from invalid i_xattr_nid, result in triggering kasan bug report, fix it. • https://git.kernel.org/stable/c/c559a8d840562fbfce9f318448dda2f7d3e6d8e8 https://git.kernel.org/stable/c/75c87e2ac6149abf44bdde0dd6d541763ddb0dff https://git.kernel.org/stable/c/1640dcf383cdba52be8b28d2a1a2aa7ef7a30c98 https://git.kernel.org/stable/c/8c8aa473fe6eb46a4bf99f3ea2dbe52bf0c1a1f0 https://git.kernel.org/stable/c/be0155202e431f3007778568a72432c68f8946ba https://git.kernel.org/stable/c/68e3cd4ecb8603936cccdc338929130045df2e57 https://git.kernel.org/stable/c/20faaf30e55522bba2b56d9c46689233205d7717 •
CVSS: 7.8EPSS: 0%CPEs: 5EXPL: 0CVE-2024-39463 – 9p: add missing locking around taking dentry fid list
https://notcve.org/view.php?id=CVE-2024-39463
In the Linux kernel, the following vulnerability has been resolved: 9p: add missing locking around taking dentry fid list Fix a use-after-free on dentry's d_fsdata fid list when a thread looks up a fid through dentry while another thread unlinks it: UAF thread: refcount_t: addition on 0; use-after-free. p9_fid_get linux/./include/net/9p/client.h:262 v9fs_fid_find+0x236/0x280 linux/fs/9p/fid.c:129 v9fs_fid_lookup_with_uid linux/fs/9p/fid.c:181 v9fs_fid_lookup+0xbf/0xc20 linux/fs/9p/fid.c:314 v9fs_vfs_getattr_dotl+0xf9/0x360 linux/fs/9p/vfs_inode_dotl.c:400 vfs_statx+0xdd/0x4d0 linux/fs/stat.c:248 Freed by: p9_fid_destroy (inlined) p9_client_clunk+0xb0/0xe0 linux/net/9p/client.c:1456 p9_fid_put linux/./include/net/9p/client.h:278 v9fs_dentry_release+0xb5/0x140 linux/fs/9p/vfs_dentry.c:55 v9fs_remove+0x38f/0x620 linux/fs/9p/vfs_inode.c:518 vfs_unlink+0x29a/0x810 linux/fs/namei.c:4335 The problem is that d_fsdata was not accessed under d_lock, because d_release() normally is only called once the dentry is otherwise no longer accessible but since we also call it explicitly in v9fs_remove that lock is required: move the hlist out of the dentry under lock then unref its fids once they are no longer accessible. This vulnerability allows local attackers to escalate privileges on affected installations of Linux Kernel. An attacker must first obtain the ability to execute low-privileged code on the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the p9_fid object. • https://git.kernel.org/stable/c/154372e67d4053e56591245eb413686621941333 https://git.kernel.org/stable/c/3bb6763a8319170c2d41c4232c8e7e4c37dcacfb https://git.kernel.org/stable/c/cb299cdba09f46f090b843d78ba26b667d50a456 https://git.kernel.org/stable/c/f0c5c944c6d8614c19e6e9a97fd2011dcd30e8f5 https://git.kernel.org/stable/c/fe17ebf22feb4ad7094d597526d558a49aac92b4 https://git.kernel.org/stable/c/c898afdc15645efb555acb6d85b484eb40a45409 https://www.zerodayinitiative.com/advisories/ZDI-24-1194 • CWE-416: Use After Free •