Description
In the Linux kernel, the following vulnerability has been resolved: f2fs: fix null-ptr-deref in f2fs_submit_page_bio() There's issue as follows when concurrently installing the f2fs.ko module and mounting the f2fs file system: KASAN: null-ptr-deref in range [0x0000000000000020-0x0000000000000027] RIP: 0010:__bio_alloc+0x2fb/0x6c0 [f2fs] Call Trace: <TASK> f2fs_submit_page_bio+0x126/0x8b0 [f2fs] __get_meta_page+0x1d4/0x920 [f2fs] get_checkpoint_version.constprop.0+0x2b/0x3c0 [f2fs] validate_checkpoint+0xac/0x290 [f2fs] f2fs_get_valid_checkpoint+0x207/0x950 [f2fs] f2fs_fill_super+0x1007/0x39b0 [f2fs] mount_bdev+0x183/0x250 legacy_get_tree+0xf4/0x1e0 vfs_get_tree+0x88/0x340 do_new_mount+0x283/0x5e0 path_mount+0x2b2/0x15b0 __x64_sys_mount+0x1fe/0x270 do_syscall_64+0x5f/0x170 entry_SYSCALL_64_after_hwframe+0x76/0x7e Above issue happens as the biset of the f2fs file system is not initialized before register "f2fs_fs_type". To address above issue just register "f2fs_fs_type" at the last in init_f2fs_fs(). Ensure that all f2fs file system resources are initialized.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
f543805fcd60f3f9a491cfa2f2dc9284d2569c28 to < 4289be8465924748daa9bf14866eb7f0987d4e39affectedf543805fcd60f3f9a491cfa2f2dc9284d2569c28 to < bd9197b72d772be7bccc3b66c83a3157cfe2f96faffectedf543805fcd60f3f9a491cfa2f2dc9284d2569c28 to < 8dddc12d03248755d9f709bc1eb9e3ea2bf1b322affectedf543805fcd60f3f9a491cfa2f2dc9284d2569c28 to < 32f5e291b7677495f98246eec573767430321c08affectedf543805fcd60f3f9a491cfa2f2dc9284d2569c28 to < 9e11b1d5fda972f6be60ab732976a7c8e064cd56affectedf543805fcd60f3f9a491cfa2f2dc9284d2569c28 to < b7d0a97b28083084ebdd8e5c6bccd12e6ec18faaaffected
Linux Linux
Default version status: affected
5.6affected0 to < 5.6unaffected5.15.209 to ≤ 5.15.*unaffected6.1.175 to ≤ 6.1.*unaffected6.6.72 to ≤ 6.6.*unaffected6.11.11 to ≤ 6.11.*unaffected6.12.2 to ≤ 6.12.*unaffected6.13 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/4289be8465924748daa9bf14866eb7f0987d4e39 ↗
- https://git.kernel.org/stable/c/bd9197b72d772be7bccc3b66c83a3157cfe2f96f ↗
- https://git.kernel.org/stable/c/8dddc12d03248755d9f709bc1eb9e3ea2bf1b322 ↗
- https://git.kernel.org/stable/c/32f5e291b7677495f98246eec573767430321c08 ↗
- https://git.kernel.org/stable/c/9e11b1d5fda972f6be60ab732976a7c8e064cd56 ↗
- https://git.kernel.org/stable/c/b7d0a97b28083084ebdd8e5c6bccd12e6ec18faa ↗