Answer in brief
CVE-2024-49924 records a High severity (CVSS 7.8) vulnerability in fbdev: pxafb: Fix possible use after free in pxafb_task(). The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=9f17f2874834f4cdbe48cc05676d8f7558793204 <e657fa2df4429f3805a9b3e47fb1a4a1b02a72bd || >=9f17f2874834f4cdbe48cc05676d8f7558793204 <6d0a07f68b66269e167def6c0b90a219cd3e7473 || >=9f17f2874834f4cdbe48cc05676d8f7558793204 <e6897e299f57b103e999e62010b88e363b3eebae || >=9f17f2874834f4cdbe48cc05676d8f7558793204 <4cda484e584be34d55ee17436ebf7ad11922b97a || >=9f17f2874834f4cdbe48cc05676d8f7558793204 <3c0d416eb4bef705f699213cee94bf54b6acdacd || >=9f17f2874834f4cdbe48cc05676d8f7558793204 <fdda354f60a576d52dcf90351254714681df4370 || >=9f17f2874834f4cdbe48cc05676d8f7558793204 <aaadc0cb05c999ccd8898a03298b7e5c31509b08 || >=9f17f2874834f4cdbe48cc05676d8f7558793204 <a3a855764dbacbdb1cc51e15dc588f2d21c93e0e || >=9f17f2874834f4cdbe48cc05676d8f7558793204 <4a6921095eb04a900e0000da83d9475eb958e61e | e657fa2df4429f3805a9b3e47fb1a4a1b02a72bd, 6d0a07f68b66269e167def6c0b90a219cd3e7473, e6897e299f57b103e999e62010b88e363b3eebae, 4cda484e584be34d55ee17436ebf7ad11922b97a, 3c0d416eb4bef705f699213cee94bf54b6acdacd, fdda354f60a576d52dcf90351254714681df4370, aaadc0cb05c999ccd8898a03298b7e5c31509b08, a3a855764dbacbdb1cc51e15dc588f2d21c93e0e, 4a6921095eb04a900e0000da83d9475eb958e61e |
| Linux/Linuxgeneric | 2.6.27 | Not reported |
Published upstream
Oct 21, 2024
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 5, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 5, 2026
In the Linux kernel, the following vulnerability has been resolved: fbdev: pxafb: Fix possible use after free in pxafb_task() In the pxafb_probe function, it calls the pxafb_init_fbinfo function, after which &fbi->task is associated with pxafb_task. Moreover, within this pxafb_init_fbinfo function, the pxafb_blank function within the &pxafb_ops struct is capable of scheduling work. If we remove the module which will call pxafb_remove to make cleanup, it will call unregister_framebuffer function which can call do_unregister_framebuffer to free fbi->fb through put_fb_info(fb_info), while the work mentioned above will be used. The sequence of operations that may lead to a UAF bug is as follows: CPU0 CPU1 | pxafb_task pxafb_remove | unregister_framebuffer(info) | do_unregister_framebuffer(fb_info) | put_fb_info(fb_info) | // free fbi->fb | set_ctrlr_state(fbi, state) | __pxafb_lcd_power(fbi, 0) | fbi->lcd_power(on, &fbi->fb.var) | //use fbi->fb Fix it by ensuring that the work is canceled before proceeding with the cleanup in pxafb_remove. Note that only root user can remove the driver at runtime.
Quoted source text, attributed separately from HOL analysis.